The Confidential Informant Laws in Indiana 

Confidential informants play a pivotal role in the investigative strategies of law enforcement agencies throughout Indiana. From drug trafficking rings to white-collar fraud cases, these individuals—often embedded within criminal enterprises—can provide critical intelligence that leads to arrests, indictments, and convictions. However, the use of confidential informants also raises serious legal and ethical questions. How reliable is the information they provide? What legal safeguards exist to protect the rights of defendants? And what rules govern the disclosure or concealment of an informant’s identity in Indiana courtrooms? 

The confidential informant laws in Indiana are designed to strike a delicate balance between empowering law enforcement to gather crucial evidence and preserving the constitutional rights of individuals accused of crimes. These laws define who qualifies as a confidential informant, establish guidelines for their use in investigations, and set forth procedures for protecting—or revealing—their identities in court. 

At Keffer Hirschauer LLP, our Indiana criminal defense lawyers have extensive experience navigating cases involving confidential informants. Whether challenging the legality of a search warrant based on informant tips or contesting the admissibility of wiretapped conversations, we bring a deep understanding of Indiana statutory law and a strategic approach to every case. 

In this guide, we’ll examine how Indiana law defines and regulates confidential informants, explore the procedures law enforcement must follow when relying on informant intelligence, and highlight key legal protections available to criminal defendants. If you’re facing charges based on information provided by a confidential informant, understanding these laws could be crucial to your defense. 

What Constitutes a Confidential Informant in Indiana? 

Under Indiana law, a confidential informant (CI) is an individual who provides information to law enforcement about criminal activity, typically in exchange for some form of benefit—such as leniency in their own legal matters or financial compensation. These individuals often operate behind the scenes, and their identities are closely guarded by police and prosecutors to preserve ongoing investigations and ensure their safety. 

Indiana does not provide a single statutory definition of “confidential informant” across all legal contexts. However, various provisions within Indiana Code Title 35—specifically in Indiana Code 35-33.5, which governs the interception of communications—imply and define the role of informants in the broader criminal justice system. For example, Indiana Code 35-33.5-2-3 discusses how information from confidential informants may be used to support a request for electronic surveillance and outlines the circumstances in which an informant’s identity and credibility must be disclosed: 

“If the application is based in whole or in part on the information provided by an informant, the application must include facts showing the informant’s credibility or the reliability of the information furnished and, as far as possible, the basis of the informant’s knowledge.” 

This statute emphasizes the necessity of evaluating not only the existence of an informant but also their credibility and the factual basis for their claims. It reflects broader legal concerns about the potential for unreliable or self-interested informant statements to lead to unjustified surveillance, searches, or arrests. 

Importantly, confidential informants differ from other sources of information: 

• Undercover officers are law enforcement agents posing as participants in criminal activities. Their identity and conduct are typically protected by different legal standards. 
• Anonymous tipsters provide information but often do not have an established record of reliability or ongoing relationship with law enforcement. 
• Informants may work with law enforcement regularly, often under agreements that incentivize their cooperation. 

Because of their involvement in these critical and often covert tasks, CIs must be handled with legal precision to ensure both the success of criminal investigations and the protection of constitutional rights. Misuse or overreliance on informants can lead to legal challenges that jeopardize entire prosecutions. 

Confidential Informant Laws in Indiana on Reliability

In Indiana, the use of information from a confidential informant in criminal investigations—particularly in obtaining search warrants or electronic surveillance authorization—is subject to strict legal scrutiny. Courts demand a demonstration of reliability and credibility before law enforcement can act on an informant’s tip. This requirement is not only codified in state statutes but also deeply rooted in both federal and Indiana constitutional law. 

Statutory Requirements Regarding a Confidential Informant in Indiana

When law enforcement seeks judicial approval to conduct electronic surveillance based on informant information, Indiana Code 35-33.5-2-3(c) places an affirmative duty on investigators to demonstrate the trustworthiness of the informant and the factual foundation of their claims. It prevents “fishing expeditions” based on unverified allegations and provides courts with the basis to determine whether a warrant or surveillance order should be granted. 

Judicial Precedent: The Aguilar-Spinelli and Gates Tests 

Indiana courts often draw on two landmark U.S. Supreme Court cases—Aguilar v. Texas and Spinelli v. United States—when evaluating whether an informant’s tip is sufficient to support a search warrant: 

1. Aguilar-Spinelli Test (historically): Requires law enforcement to show: 
   • The basis of the informant’s knowledge 
   • Facts establishing the informant’s veracity or the reliability of their information 
2. Illinois v. Gates (adopted by Indiana courts): Established the “totality of the circumstances” test, a more flexible approach. Under this standard, courts assess all available facts to determine whether probable cause exists, even if either Aguilar-Spinnelli element is weak. 

Indiana courts apply this totality analysis to determine whether an affidavit based on an informant’s tip meets the constitutional requirement of probable cause under the Fourth Amendment and Article 1, Section 11 of the Indiana Constitution. 

Warrant Affidavits and Informants 

When officers submit affidavits to obtain warrants based on informant intelligence, they must provide (a) specific details of the informant’s statements; (b) corroborating facts, if any (such as surveillance or recorded conversations); and (c) a history of the informant’s reliability, if previously used. For example, if a confidential informant claims that illegal narcotics are being stored in a residence, law enforcement must provide the court with information about how the CI came to know that fact (e.g., personal observation) and any supporting facts that bolster the claim (e.g., observing known drug traffickers in Indiana entering the home). 

The Role of Corroboration 

Corroboration plays a vital role in establishing informant reliability. Courts are more likely to approve surveillance or search warrants in Indiana when law enforcement independently verifies the location of illegal activity, the people involved, and the timing and logistics of alleged criminal conduct. Without corroboration, courts may find the affidavit insufficient, particularly if the informant is untested or has a motive to fabricate information. 

Electronic Surveillance and the Confidential Informant Laws in Indiana 

Confidential informants are frequently used in cases involving electronic surveillance—particularly in narcotics, firearms, and organized crime investigations. Indiana law strictly regulates how this surveillance is authorized and conducted, especially when it involves audio or electronic recording of private conversations. These safeguards are designed to prevent abuse and protect constitutional rights while still enabling effective law enforcement. 

Indiana’s Wiretap Act: IC 35-33.5 

The core of Indiana’s surveillance law is found in Indiana Code 35-33.5, which governs the interception of telephonic or telegraphic communications. This statute outlines the procedures for obtaining a wiretap order and includes specific provisions regarding the use of confidential informants in the process. 

Under Indiana Code 35-33.5-2-3, if law enforcement bases a wiretap request on information obtained from a confidential informant, they must: 

• Disclose details regarding the informant’s credibility 
• Establish the basis of the informant’s knowledge, such as personal observation or prior dealings 
• Demonstrate why the wiretap is necessary and whether alternative investigative methods have failed or would likely fail 

This ensures that judicial authorization for invasive surveillance is not granted lightly and is based on verifiable and trustworthy intelligence. 

Sealing and Preservation of Recordings 

Once a wiretap is approved and communications are intercepted, Indiana Code 35-33.5-5-2 mandates that recordings be handled with strict procedural integrity: “Immediately upon the expiration of the period of the order, or extensions thereof, the recordings shall be made available to the judge and sealed under the judge’s directions.” 

Failure to properly seal recordings can lead to their suppression in court, making it impossible for prosecutors to use them as evidence. 

Additionally, IC 35-33.5-5-3 outlines limitations on disclosure: 

• Only law enforcement officers directly involved in the investigation may access the recordings. 
• The recordings may not be made public or used in unrelated proceedings. 
• Disclosure to the defense is permitted only when constitutionally or statutorily required, often during discovery or evidentiary hearings. 

Use of Informants in Controlled Calls or Recordings 

In many investigations, confidential informants participate in controlled calls or wear recording devices to capture incriminating conversations with suspects. Indiana law does not generally prohibit the recording of conversations if one party to the conversation (such as the informant) consents to the recording. This is known as one-party consent, and it is legally sufficient under Indiana law to avoid violations of wiretap statutes. 

However, such recordings must be handled with care: 

• Authentication is required in court to confirm the identity of speakers. 
• Chain of custody must be documented to establish the recording’s integrity. 
• Consent must be proven, often through testimony from the informant or the officers supervising the operation. 

If these conditions are not met, a skilled Indiana defense attorney may challenge the admissibility of the recording through a motion to suppress. 

Implications for the Defense 

For defendants, the use of confidential informants in electronic surveillance raises important legal questions: 

• Was the informant credible and properly vetted? 
• Were statutory procedures for authorizing surveillance strictly followed? 
• Were the recordings sealed, stored, and disclosed in compliance with the law? 

The best criminal defense attorneys in Indiana can exploit procedural errors, challenge the necessity or scope of the surveillance, and even seek to suppress evidence if the informant’s conduct violated statutory or constitutional rights. 

Legal Protections for Confidential Informants in Indiana

While confidential informants are often key players in criminal investigations, their role places them in significant personal and legal jeopardy. To encourage cooperation and maintain the integrity of investigations, Indiana law provides several protections for informants—chiefly surrounding the confidentiality of their identity and their physical safety. At the same time, these protections must be balanced against the constitutional rights of criminal defendants. 

Statutory Protections Against Disclosure 

One of the most critical protections is the ability of law enforcement and prosecutors to withhold the identity of a confidential informant when it is not essential to the defense. This is supported by both case law and statutes, particularly Indiana Code 35-33.5-5-3(d), which restricts the unauthorized disclosure of intercepted communications and, by extension, information that might identify an informant. 

In practice, unless the identity of the informant is directly relevant to the defense—such as when the informant is a material witness to the crime or participated in it—the court is likely to uphold the confidentiality of the informant. 

Courts routinely apply the Roviaro v. United States balancing test, which weighs: 

• The public interest in protecting the flow of information to law enforcement 
• The defendant’s right to prepare a defense and receive a fair trial 

In Indiana, this test is applied on a case-by-case basis, and disclosure is ordered only when the informant’s testimony is deemed essential to the fairness of the proceedings. 

Safety and Retaliation Protections 

Indiana law also includes provisions to protect informants from retaliation. Under Indiana Code 35-44.1-1-2, it is a criminal offense to bribe or intimidate a witness, which includes confidential informants. Moreover, Indiana Code 35-44.1-2-2 criminalizes actions that obstruct justice, such as: 

“Knowingly or intentionally threatening, coercing, or otherwise intimidating an informant with the intent to prevent them from cooperating with a law enforcement investigation.” 

These statutes serve to deter retaliation against individuals who cooperate with authorities and ensure that informants can safely assist in law enforcement operations without undue risk to their lives or freedom. 

Limitations on Informant Testimony and Exposure 

Even when an informant is called to testify, Indiana law provides mechanisms to limit their exposure: 

• Courts may impose protective orders to restrict the use of real names, addresses, or personal details. 
• Judges may permit in-camera (private) hearings to determine whether an informant’s identity or testimony is relevant and necessary before allowing disclosure. 
• Defense counsel may be permitted to cross-examine the informant under strict conditions to preserve due process while mitigating exposure. 

If the prosecution intends to introduce evidence obtained through an informant—such as recordings, testimony, or search warrants based on their tips—the defense may file a motion to compel disclosure of the informant’s identity, which the court will consider under the Roviaro standard. 

The Confidential Informant Laws in Indiana on Immunity and Leniency

It is also common for informants to receive legal incentives in exchange for their cooperation: 

• Immunity agreements, often informal, may shield the informant from prosecution for related crimes. 
• Plea bargains or sentence reductions are frequently offered to defendants who agree to serve as informants. 

However, such arrangements can create credibility issues that the defense can exploit during trial. If an informant stands to gain significantly from their cooperation, the jury must be made aware of this potential bias. The defense has the right to cross-examine the informant on these incentives, subject to court discretion. 

When Can a Confidential Informant’s Identity Be Disclosed? 

While Indiana law and federal precedent strongly protect the anonymity of confidential informants, these protections are not absolute. A criminal defendant has a constitutional right to a fair trial under both the Sixth Amendment of the U.S. Constitution and Article 1, Section 13 of the Indiana Constitution. When an informant’s testimony or identity is critical to the defense, the law may require disclosure. 

The Roviaro Balancing Test 

The U.S. Supreme Court case Roviaro v. United States, 353 U.S. 53 (1957), established the foundational test used by courts across the country, including Indiana. This test requires judges to weigh the public interest in protecting the flow of information against the defendant’s right to prepare an adequate defense. 

Disclosure of an informant’s identity may be compelled when: 

• The informant is a material witness to the crime 
• The informant’s testimony is relevant and helpful to the defense 
• The informant participated in the alleged offense 
• Disclosure is essential to a fair trial 

Indiana courts have consistently applied this balancing test in motions to compel the disclosure of informant identities. The outcome often turns on the level of involvement the informant had in the alleged criminal conduct. 

Indiana Case Law and Informant Involvement 

Indiana courts are generally reluctant to force disclosure unless the informant played an active and direct role in the events in question. For example, if the informant merely passed along third-party information and did not participate in the transaction or criminal act, courts tend to deny disclosure; or if the informant was present during the crime or made statements that contradict the prosecution’s version of events, courts are more likely to order disclosure. 

In such cases, defense counsel may argue that the informant’s perspective is essential to establish an affirmative defense (such as entrapment), undermine the prosecution’s narrative, or corroborate the defendant’s version of events. 

Motions to Compel Disclosure 

When an informant’s identity becomes an issue, the defense must typically file a motion to compel disclosure. The court may conduct an in-camera review (a private judicial examination of the informant’s role and relevance); hear arguments from both sides regarding necessity and risk; and issue a ruling balancing public interest against the defendant’s constitutional rights. If disclosure is denied and the defense is deprived of vital information, the court may take further steps to ensure fairness—such as excluding evidence derived from the informant or suppressing testimony if the circumstances warrant it. 

Protective Procedures for Disclosed Confidential Informants in Indiana

When disclosure is ordered, Indiana courts may impose protective measures to reduce potential harm to the informant. This may include sealing of court records or limited disclosure to defense counsel only (not the defendant). It may also include the issuance of Indiana protective orders limiting the scope of cross-examination or the placement of restrictions on disseminating identifying information outside of court proceedings. These procedures aim to respect both the informant’s safety and the defendant’s rights. 

Common Legal Issues with the Use of a Confidential Informant in Indiana 

While confidential informants are often essential to building criminal cases in Indiana, their use is not without serious legal pitfalls. The defense has multiple opportunities to challenge the prosecution’s reliance on informants—especially when issues of credibility, reliability, or procedural violations arise. Understanding these common legal issues is crucial for any defendant whose case involves an informant. 

Entrapment: One of the most significant defenses in informant-related cases is entrapment. Under Indiana law, entrapment occurs when a government agent or informant induces a person to commit a criminal act that they would not have otherwise committed. Per Indiana Code 35-41-3-9, entrapment is defined as: “Conduct that creates a substantial risk that an offense will be committed by a person not otherwise disposed to commit the offense.” In practical terms, if a confidential informant pressures, persuades, or manipulates someone into committing a crime for the purpose of facilitating an arrest in Indiana, the defense may argue that the defendant was entrapped. This is particularly common in drug stings, where informants may initiate illegal transactions or repeatedly pressure reluctant individuals. 

Fabrication or Misconduct by Informants: Confidential informants are often individuals with criminal records or pending charges of their own. They may be working with law enforcement in exchange for leniency, immunity, or financial gain. This dynamic creates a strong incentive for some informants to fabricate evidence or exaggerate information to appease their handlers. Courts have held that defense attorneys are entitled to explore these biases and motivations through cross-examination, especially when the informant’s credibility is central to the prosecution’s case. 

Motions to Suppress: Informant-related evidence is frequently challenged through motions to suppress, especially when an Indiana search warrant or arrest warrant was based on an informant’s tip that lacks sufficient indicia of reliability or when surveillance was conducted without proper judicial authorization. These motions argue that the evidence obtained as a result of the informant’s actions should be excluded from trial due to constitutional or statutory violations. 

Use of Paid or Coerced Informants: Another issue arises when informants are compensated or coerced by law enforcement. While Indiana law does not prohibit payments to informants, the defense may challenge the integrity of their testimony if the compensation is significant or if the informant is working to avoid prison time. Such arrangements can affect the voluntariness of the informant’s cooperation; the credibility of their statements and testimony; and the fairness of the resulting investigation. In some cases, the defense may seek to present evidence of police misconduct in recruiting or managing the informant, which could lead to suppression of evidence or dismissal of charges. 

Failure to Disclose Brady Material: Under the landmark U.S. Supreme Court case Brady v. Maryland, the prosecution must disclose any exculpatory evidence—including information that could impeach the credibility of a witness, such as an informant. If the state fails to disclose the informant’s criminal history, promises of leniency or payment, and/or previous instances of dishonesty. Then the defense may seek to have the evidence excluded or the case dismissed on due process grounds. 

Cross-Examination Challenges: Informants who testify at trial present unique challenges. Defense counsel must walk a fine line between aggressive cross-examination and avoiding alienation of the jury. Courts may limit questioning, especially if it risks exposing the informant to harm, but the defense retains the right to challenge the informant’s motive; the consistency of their statements; and/or their understanding of the events they allegedly witnessed. Proper cross-examination is crucial when the prosecution’s case hinges on the informant’s version of events. 

Best Practices in Criminal Defense Involving Confidential Informants in Indiana

Defending a case that involves a confidential informant requires a nuanced, proactive legal strategy. The stakes are often high—informants may be the sole source of incriminating evidence, or their testimony may tip the balance in a jury trial. Experienced defense attorneys, like those at Keffer Hirschauer LLP, utilize a combination of legal knowledge, investigative skill, and procedural precision to protect the rights of their clients. 

Below are several best practices employed by effective Indiana criminal defense lawyers when informants are involved. 

1. Early Evaluation of Informant Credibility 

From the outset of the case, it is essential to identify the nature of the informant’s role: 

• Was the informant a witness or a participant? 
• Did they initiate or merely observe the alleged crime? 
• What benefits, if any, were promised in exchange for their cooperation? 

Answers to these questions help frame pre-trial motions and guide cross-examination strategy. If the informant’s credibility is weak, this should be highlighted early to challenge the legitimacy of the charges or the strength of the prosecution’s case. 

2. Filing Targeted Discovery Requests 

In cases involving informants, defense counsel should promptly file discovery motions requesting: 

• The identity of any informant used 
• Any deals, promises, or inducements offered to the informant 
• The informant’s criminal history or pending charges 
• Copies of all recorded communications involving the informant 

Indiana courts may require the prosecution to disclose this information—especially if the informant will be testifying or played a material role in the events leading to the defendant’s arrest. 

3. Pursuing Motions to Suppress under the Confidential Informant Laws in Indiana

When an arrest or search was based on an informant’s tip, defense counsel should scrutinize the warrant affidavit for: 

• Lack of corroborating evidence 
• Vague or conclusory statements about the informant’s reliability 
• Omissions or misrepresentations of material facts 

If the affidavit fails to establish probable cause, or if the informant’s tip was the sole basis for the warrant and lacked sufficient reliability, the resulting evidence may be subject to suppression. 

4. Challenging Informant Testimony Pre-Trial 

If the prosecution intends to use the informant as a trial witness, counsel should file: 

• A motion in limine to restrict or exclude improper testimony 
• A motion to compel disclosure of the informant’s identity (if not already revealed) 
• A request for a hearing to determine the necessity of disclosure under Roviaro 

This litigation can significantly weaken the prosecution’s case or provide leverage in pre-trial negotiations. 

5. Conducting a Parallel Investigation 

Private investigators or defense teams should attempt to independently verify or rebut the informant’s claims by: 

• Interviewing potential witnesses 
• Reviewing surveillance footage or phone records 
• Investigating the informant’s background and possible biases 

A proactive investigation may uncover information that discredits the informant or supports an alternate narrative of the events in question. 

6. Preparing for Strategic Cross-Examination 

If the informant testifies, the defense must prepare a meticulous cross-examination focused on: 

• Bias (e.g., leniency, money, revenge) 
• Credibility (e.g., criminal history, prior dishonesty) 
• Consistency (e.g., conflicting versions of events) 

Highlighting these issues can undermine the prosecution’s case in the eyes of the jury, particularly when the informant is the key witness. 

7. Exploring Plea or Dismissal Opportunities 

In some cases, exposing the informant’s unreliability or procedural flaws in how they were used can motivate prosecutors to: 

• Offer a favorable plea agreement in Indiana 
• Drop or reduce charges 
• Refrain from introducing certain evidence at trial 

Experienced Indiana defense counsel leverages these opportunities to protect the client’s interests and achieve the best possible outcome. 

How Keffer Hirschauer LLP Can Help 

Facing criminal charges in Indiana is a daunting experience, particularly when the case involves confidential informants. These cases are complex, often hinging on information provided by individuals whose motives, credibility, and methods may be questionable. At Keffer Hirschauer LLP, we understand the unique challenges posed by informant-driven prosecutions and offer a depth of experience that few firms can match. Our attorneys bring years of prosecutorial and defense experience to the table, allowing us to anticipate the strategies used by the State and counter them with meticulous legal and factual analysis. 

We work swiftly to assess the role of the confidential informant in each case, from reviewing the probable cause affidavit to evaluating any surveillance evidence or wiretap recordings. Our team rigorously investigates whether proper procedures were followed under Indiana Code, whether the informant’s statements were corroborated, and whether the defendant’s constitutional rights were respected. Inappropriate reliance on unverified or incentivized informants can often form the foundation of an aggressive defense, and our Indiana defense lawyers know how to exploit those weaknesses to our clients’ advantage. 

Our firm is also adept at litigating suppression motions, seeking to exclude evidence obtained unlawfully or through unreliable sources. When the prosecution relies on an informant’s testimony, we prepare comprehensive cross-examinations aimed at exposing bias, inconsistent statements, or ulterior motives. And when informant identity becomes a legal issue, we pursue all available procedural tools—including motions to compel disclosure—while advocating for client rights without compromising court-mandated protections. 

Clients who work with Keffer Hirschauer LLP benefit from a defense team that is not only deeply familiar with the intricacies of Indiana criminal law but also highly strategic in its approach. We treat every case as unique, applying our legal knowledge, courtroom experience, and dedication to due process to seek favorable outcomes—whether that means case dismissal, charge reduction, or trial victory.  

Concerned About the Confidential Informant Laws in Indiana? 

Whether you are facing charges based on informant-driven evidence or believe your rights were violated through an improper investigation, understanding your legal options is crucial. The consequences of a conviction can be severe, but with the right defense strategy, it is often possible to challenge the evidence, suppress unlawfully obtained material, and weaken the prosecution’s case. 

The experienced Indiana criminal defense lawyers at Keffer Hirschauer LLP are prepared to guide you through this process with confidence and clarity. We provide informed legal counsel, aggressive courtroom advocacy, and a commitment to protecting your rights at every stage. If your case involves a confidential informant or other high-stakes investigative tactics, don’t face it alone. 

Contact us today at 317-648-9560 to discuss your case or complete our online contact form to schedule a consultation.