The gun permit unit, formerly located in a decrepit — if centrally located — building at 10th and Spring Garden, moved in July to 660 E. Erie Ave. in Feltonville. The unit has a few civilian employees, Wilson says, but most are police officers dressed in jeans with Glocks on their hips. Wilson says the department doesn't reveal staffing levels. Frankly, I don't know why they need uniformed officers to do what is basically a clerical job.