Under investigation · August 25, 2025

The Polygraph Trap

(Ported from the firm's current site — original. For the firm to review before launch.)

Why You Should NEVER Take a "Lie Detector Test" Without Professional Guidance

At Hills at Law, P.C., we've been defending clients for over 45 years, winning more than 90% of our jury trials in the last decade. Through that experience, one lesson is crystal clear: polygraphs are one of the most dangerous traps in a criminal investigation.

We call them the "cop confessional" or the "you-lie machine" — because that's exactly how they're used. Here's what you need to know before ever agreeing to a polygraph exam.

How Does a Polygraph Come Up?

Polygraphs are usually suggested during early questioning. Detectives may say things like:

• "If you're telling the truth, this will clear your name."
• "If you pass, the prosecutor will see this in your favor."
• "It's not admissible in court, so there's no harm."

The last claim is false. Much of a polygraph exam is admissible in court — and that's what makes them so dangerous.

The Three Dangerous Parts of a Polygraph

1. The Beginning – The "Green Light" (ADMISSIBLE)

• You're on police turf, strapped to their machine, and being recorded.
• The examiner builds trust by asking personal questions: your family, your job, your background.
• Any inconsistency with prior statements can be used against you.

2. The Middle – The "Red Light" (NOT ADMISSIBLE)

• The actual 10–15 minute test with 3–5 "yes/no" questions.
• This part is not admissible in court. But it's the only part that isn't.

3. The End – The "Green Light" (ADMISSIBLE)

• After the test, the operator almost always says, "My machine says you're lying."
• Then come the leading questions: "Did you hit her with your left hand instead of your right?"
• This stage is designed to push suspects into making admissions or confessions. And every word here is admissible in court.

Why You Should Refuse a Polygraph

Polygraphs aren't truth machines — they're interrogation tools. They're built to:

• Create psychological pressure
• Extract damaging statements
• Strengthen the prosecutor's case

Our advice is simple: Never agree to a polygraph without legal counsel. The risks are too high, and the test is designed to trap you.

Protect Yourself: Call Hills at Law, P.C.

If you're asked to take a polygraph, or if you're facing questioning in any criminal case, call us immediately. With decades of proven results, we know how to protect your rights and shield you from these traps.

Hills at Law, P.C. — Michigan's criminal defense leaders for over 45 years.

This article is general legal information for Michigan readers, not legal advice, and reading it does not create an attorney-client relationship. Past results never guarantee future outcomes. For advice about your situation, call (269) 373-5430. Attorney advertising.