Hello, I recently submitted an application for LE. I didn't lie on application but I did forget to put an employer from over 12 years ago when I was in highschool. I just forgot, is there anyway to re-submit or will I just fail the background?
Think of any other additions you want to include, then submit an addendum, with a brief statement, of an oversight, not a deliberate omission.
Truthfulness is a key aspect of the application, as the agency is trying to divine character and qualifications of the candidates.
I doubt an oversight will be the cause of you being dismissed from consideration.
Just try to be honest, complete, and express yourself with language economy.