I would recommend privately consulting with an attorney if you need specific legal advice for your particular circumstances. Most attorneys provide free initial consultations. This answer does not contain specific legal advice. Speaking generally, polygraphs are very risky for alleged defendants in criminal cases. The results are usually not admissible in court. There are notable issues with accuracy. However, this exclusion may be waived if the alleged defendant is volunteering to take one with the prosecutor's office. In some limited circumstances, they be very valuable. However, preferably, it is better to perform a private one and examining those results prior to agreeing to take one with the prosecutor's office. Nobody should contemplate taking a lie detector or polygraph test unless they have been privately fully advised of all the inherent risks.
Answered on Oct 12th, 2011 at 2:24 AM