5 years ago, I committed fraud at my work. Yes it was very stupid of me. The police were called to investigate(I had quit by then).  I was considered a suspect (I had a look at my local PD files), however I was never interviewed by anyone (employer or police).

I have since finished up my bachelors degree, kept my nose clean and looking at applying for a LEO position.  I was told by a recruiter that I am strong candidate.  I have had a few non criminal incidents with the police (traffic tickets or filing a car accident claim) and the fraud incident was never brought up. I've been granted security clearances from the government for internships, and passed other background checks.   

Question is,  should I admit my wrongdoing of the fraud case in the pre employment booklet (and risk any sort of repercussions)? Or keep my mouth shut and if it arises during the background investigation, admit I had no idea what they are talking about.