Most police department are pretty liberal in letting their cops moonlight, but time to time, you will run into a department, city or state that will not allow it. Most cops who moonlight work as bouncers or as extra security, mostly in plain clothes. As in the case with many businesses, you can hire extra cops dedicated to your business or venue through the municpality or department. When I use to settle shows on behalf of the artist with the promoters or concert venue, there were always an expense for police. Meaning that the show would directly pay the department for so many cops to secure the facility. They could be used for traffic, building security, etc. If you went to go see a hockey game or basketball game, the cops that you see working those games are usually present by request through the venue or sports team, reimbursing the cost with the police department. No extra cost for the tax payers with the exception of the normal amount of cops that regularly patrol the area. Samething for medical, the show or team would be responsible for providing extra medical staff, like EMT's. That would fall under the medical expense, which you will always find for special events.
