I had a minor in possession of alcohol charge when 18, arrested, went to court, paid court fees. Put it on my application but leo said there was no record. YMMV
Always best to be honest, don't want to be denied for lying by omission.
How long ago were you arrested, and how long ago did the LEO tell you there was no record?
The reason there might have been no record at the time is that it was sitting in some filing cabinet buried
in some basement along with thousands of other filing cabinets waiting to be digitally entered into the
electronic database.
Government agencies at both the state and federal level have spent years and millions of dollars going
through previously unknown ancient arrest records and entering them into the system.
The result was that there were a lot of people who came up clean in prior background checks that were
suddenly finding themselves prohibited persons. Some of the arrests had gone back decades.
I had an ATF inspector tell me that they had to revoke a number of FFL licenses because of
previously unknown arrests.
Myself, I have a DUI going back to 1980 that apparently there is no record of, yet I always disclose it every time
I renew. On one of my renewals, the licensing officer even told me he searched high and low trying to
find it without any success.
For all I know, it might never turn up, but I'm still not going to risk it by not disclosing it.