How long ago did this occur? How old were you thn, and how old are you now?
WHY were the charges dropped?
If you had to surrender your firearms, were you able to get them back? If not, why not?
As long as you were not convicted and there is no protective order or restraining order in place, there should be no legal bar to employment as a peace officer. However, this history would certainly be scrutinized hard by any agency background process. How much harm it might do will depend on the details of the case (because they will seek a copy of the report and speak to the victim and/or witnesses - maybe officer as well), the time that has passed since, your age and maturity at the time, and what you have done in the meantime. Education, a solid work history, and a clean history can go a long way to moving beyond this sort of thing.

