Can you work security if many years ago you had withheld ajudication?

Yes, it is possible to work in security even if you had withheld adjudication in the past, but it largely depends on the specific circumstances and the laws in your state or country. Employers may conduct background checks, and the nature of the offense, how long ago it occurred, and whether you've demonstrated rehabilitation can influence their decision. Many security positions also require licensing, which may have its own criteria regarding past offenses. It's advisable to be transparent about your history when applying for such roles.