In the state of PA?
Here in FL, our LEOs have part time jobs as security.
Suggest that you get through school first and (once graduated and accepted into a force) find out what the regular job thinks about part-time work.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)