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Fighting Confidential Informants

Fighting Confidential Informants in a Phoenix Drug Case

Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · Drug Crime Defense

5.0 · Drug Crime Defense

Many Phoenix sale and trafficking cases are built on a confidential informant and a controlled buy. Informants are often paid or working off their own charges, which gives them a powerful reason to lie, and their credibility and the buy itself are highly attackable.

Recognized By

NTL Top 100 Trial LawyersNTL Top 40 Under 40 Trial LawyersElite Lawyer 2026 Criminal Defense2025 Super Lawyers SouthwestNational College For DUI DefenseDUI Defense Lawyers Association
Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · Drug Crime Defense

★★★★★ 5.0 · Drug Crime Defense

Written and legally reviewed by Michael Tamou, Founding Attorney of Tamou Law Group, PLLC. Last updated June 29, 2026.

As Seen On

As Seen On NBC News, USA Today, Digital Journal, AZ Central, Lamar, ABC News, Fox News

Recognized By

NTL Top 100 Trial LawyersNTL Top 40 Under 40 Trial LawyersElite Lawyer 2026 Criminal DefenseNational College For DUI DefenseDUI Defense Lawyers Association2025 Super Lawyers Southwest

Can a drug case built on a confidential informant be beaten?

Quick answer: Often, yes. Confidential informants are frequently paid, or working off their own criminal charges, giving them a strong motive to fabricate or entrap. We attack the informant’s reliability and bias, the integrity of the controlled buy, and, where police induced conduct you were not predisposed to commit, we raise entrapment. Cases that look damning on paper frequently have serious weaknesses under the surface.

Tamou Law Group team, former prosecutors defending Arizona drug charge cases
Our Team Has Seen

Both Sides

Former Prosecutors · Law Enforcement · Public Defenders

When you call Tamou Law Group, you reach a firm that handles criminal defense exclusively, with serious experience defending drug charge cases across Arizona. Our team includes former prosecutors and law enforcement officers, so we know exactly how the State builds these cases, and where they fall apart.

At many large firms, the name on the building is a marketing figurehead, you rarely get them on the phone and your case goes to a junior associate. When you hire Tamou Law Group, your case is handled by a full team of attorneys, not associates, including Michael Tamou.

Why It Matters

The Case Rests on a Compromised Witness

Sale and trafficking cases often stand or fall on an informant, and informants have every reason to shade the truth.

Undercover drug operations rarely rely on the police alone. They rely on confidential informants (CIs), people who arrange and make “controlled buys” from a target. The problem is that CIs are almost never neutral. Most are:

  • Working off their own charges, trading cooperation for leniency, so they need the buy to succeed.
  • Being paid, sometimes per case or per arrest, a direct financial incentive to produce results.
  • Addicted or entangled, with their own drug involvement and credibility problems.
A witness who gets out of jail, or gets paid, only if the defendant is convicted is exactly the kind of witness a jury should distrust. Our job is to make sure they do.
Credibility

Attacking the Informant

The informant’s history, deal, and motive are all fair game, and often decisive.

We push hard, through legal channels, to expose who this informant really is and what they were promised. That includes:

  • The deal, the exact benefit the CI received, pending charges dropped, sentence reductions, or cash.
  • The track record, prior cases, prior lies, and any history of fabrication or unreliable tips.
  • The criminal history and drug involvement that bear on credibility.
  • Whether the CI, not the defendant, initiated and drove the transaction.

In appropriate cases we can litigate to compel disclosure of information about the informant, and the State sometimes chooses to dismiss rather than reveal a CI it wants to keep using.

The Buy

Was the Controlled Buy Actually Controlled?

Police procedures for controlled buys are strict, and they are frequently not followed.

A “controlled” buy is supposed to be tightly supervised: the CI is searched before and after, the money is documented, and the transaction is monitored or recorded. In reality, the controls are often loose. We examine whether:

  • The CI was thoroughly searched before the buy, or could have carried in drugs to plant.
  • The transaction was actually observed or recorded, or rests on the CI’s word alone.
  • The audio/video is complete and unedited, or conveniently missing the key moments.
  • The identity of the seller is truly established, or the CI simply named the target.

Gaps in the buy procedure are gaps in the State’s proof, and they feed directly into chain-of-custody challenges over the drugs themselves.

Entrapment

When Police Cross the Line

If the government induced a crime you were not predisposed to commit, that is entrapment, and it is a complete defense.

Entrapment applies when law enforcement, or an informant acting for them, induces a person to commit a crime they were not predisposed to commit. It is not entrapment merely to give someone an opportunity, but it crosses the line when police badger, pressure, appeal to sympathy, or repeatedly push a reluctant person until they give in.

In CI cases, entrapment often turns on who started it and who kept pushing. The complete, unedited communications, texts, calls, and recordings, frequently tell a very different story than the police report’s summary. We obtain and dissect all of it.

Entrapment, credibility, and buy-procedure attacks combine with the rest of our Top 10 drug defenses to dismantle a case that first looked airtight.

Facing a drug charge in Phoenix? Talk to our team for a free, confidential review, 24/7.

Our Defense Team

The Experts We Bring to Drug Cases

Drug cases are built on searches, lab reports, and informants. We bring the specialists who take each one apart, click any to see how.

Forensic Chemists

Independent Lab Testing

Re-test the substance by GC-MS and audit the State lab’s calibration, quality-control, and analyst notes to challenge the drug’s identity. They also re-weigh the sample, excluding packaging and moisture, because a weight pushed over the statutory threshold is what triggers mandatory prison, and an error there can drop a case to probation.

Fourth Amendment Specialists

Search & Seizure

Reconstruct the stop, the search, and the warrant second by second to expose Fourth Amendment violations: an unjustified stop, one prolonged past its purpose (Rodriguez), an unreliable K-9 alert, coerced “consent,” or a warrant built on a thin or stale affidavit. Any one can suppress the drugs and end the case.

Private Investigators

Informants & Witnesses

Dig into the confidential informant and the controlled buy, the deal the CI received, their pending charges and prior lies, and whether the buy was actually searched, monitored, and recorded. They also locate witnesses and establish who else had access, exposing the bias and gaps that collapse sale and trafficking cases.

Digital Forensics Examiners

Phones & Access

Examine device extractions, metadata, and access logs to answer the question the State glosses over: who actually knew about and controlled the drugs. In shared cars, homes, and phones, that access data, and the absence of your prints or DNA, is what defeats a “constructive possession” theory built on mere presence.

Chain-of-Custody Analysts

Evidence Handling

Trace the evidence from the roadside through the property room to the lab and the courtroom, documenting every transfer and signature. Gaps, mislabeled bags, broken seals, and contamination raise real doubt about whether the substance tested is even what was seized from you, and unreliable evidence gets excluded.

Treatment & Diversion Advocates

Prop 200 / TASC

Build the treatment and mitigation record that moves eligible cases off the prison track: screening for TASC diversion (which ends in dismissal), documenting Prop 200 eligibility, and lining up assessment and counseling. On personal-possession cases this record is often what secures a dismissal or probation instead of a conviction.

Awards & Recognition

Our recognition for Phoenix drug crime defense is independently verified, click any award to confirm it:

Together, these place Tamou Law Group among the best Phoenix drug crime lawyers, led by Founding Attorney Michael Tamou and a full team of attorneys, including former prosecutors.

Common Questions

Phoenix Drug Crime Defense FAQs

Quick answers to the questions we hear most.

Can I find out who the confidential informant is?

Sometimes. Arizona protects informant identity in many cases, but where the CI is a material witness or the identity is essential to the defense, we can litigate to compel disclosure, and the State sometimes dismisses rather than reveal the CI.

Are confidential informants reliable?

Often not. Most are paid or working off their own charges, giving them a strong motive to lie or entrap. Their credibility, criminal history, and the deal they received are all fair game for the defense.

What is entrapment in a drug case?

Entrapment is when police or their informant induce you to commit a crime you were not predisposed to commit, through pressure, badgering, or manipulation. It is a complete defense, and it often turns on who initiated and drove the transaction.

What is a controlled buy?

A supervised purchase where an informant buys drugs from a target under police monitoring. The procedures are strict, searching the CI, documenting money, recording the buy, and are frequently not followed, which creates strong defenses.

Can a drug sale case be dismissed?

Yes. Weaknesses in the informant’s credibility, the controlled buy, the chain of custody, or an entrapment defense can lead to dismissal or a reduction from sale to simple possession. Call 623-321-4699, 24/7.

Key Takeaways

  • Many sale and trafficking cases are built on a paid or charge-motivated confidential informant.
  • The informant’s deal, bias, and track record are all attackable, and often decisive.
  • Controlled-buy procedures are strict and frequently not followed, creating reasonable doubt.
  • Entrapment is a complete defense when police induced conduct you were not predisposed to commit.
  • These cases are more defensible than they look. Call 623-321-4699, 24/7.
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Case Results Disclaimer: The results described on this page are based on specific facts and circumstances and do not guarantee or predict a similar outcome in any future case. Every case is different. Past results do not guarantee future results. No attorney-client relationship is formed by viewing this page or submitting a contact form until a written fee agreement has been signed. Tamou Law Group, PLLC is licensed to practice law in the State of Arizona. This website is for informational purposes only and does not constitute legal advice.