I work at the US postal service and have been employed there for the past 10 years.

I work in the registry unit, which is a highly secure area that involves high value mail.  This includes gold, bonds, diamonds, cash and other valuable mailing.

A piece went missing about a month ago, which happens from time to time.  They always turn up, having been missent or simply missplaced.

US postal inspectors wanted to ask me some questions because I was the person who dispatched the station's mail for the piece in question.

While I was entitled to a union steward, I did not request one because I wanted to be helpful in any way possible.  I sat through 4 hours of "discussion" and then agreed to a polygraph.

The first 3 turned up inconclusive, so I agree to take another.  So, they gave me 4 more.

I was given 7 polygraphs in a row, at which point they told me I was obviously lying about the missing piece.

I realize now that I made 2 mistakes in the test.  First, I declared I hadn't stolen anything before the age of 25.  While I couldn't think of anything, my answer of 'no' was bad.  Also, I was asked if I had stolen anything from a previous employer.  I said 'no' to this as well because I didn't recall anything.

please advise

thank you

Tom