Sworn officer (Reserve/Auxilliary) for five years. In the recruiting process for full time with various agencies for 3 years. Lost track of how many "lifestyle/integrity" questionnaires (usually about 80 some pages each regarding EVERYTHING you've EVER done, regardless of whether you got caught). Not sure how many interviews I've been through regarding the answers to those questions and my life/qualifications in general, but it's at least three. Been through 2 polygraphs (one lasting two hours the other nearly five) to verify the answers from the interviews. Been through local and federal background investigations. Currently at the final stage with our federal police service.
It may sound harsh, but Will has given you good advice. In the course of my process I have disclosed some seriously embarrassing shit. At least, it started out as embarassing. By the time I'd rehashed it with enough perfect strangers I started to get a bit numb to the embarrassment factor. I was as truthful as possible throughout, and yet after each interview I agonized over whether I had been truthful enough.
The whole, unvarnished truth is not really something most of us deal in day to day. We use euphimisms, shades of truth, revisionist history and selective forgetfulness to feel better about ourselves and to fulfil our social contracts with others. It is all to easy for even an "honest" person to tell a "small", automatic lie without even thinking. In the recruiting process, and more importantly in policing, this all changes. Much of the time police are forced to work in the grey. Where the truth is concerned, it is and must be black and white. Something happened or it didn't, period. If you're already consciously looking for some "flexibility" where the truth is concerned, your head's just not in the right place
You act in good faith, do your best, tell the truth and take your lumps. This may mean you get screwed. Doesn't matter. The truth is the truth and it's non-negotiable.