Complex sentence: Every Police Precinct, Housing Police Service Area and Transit District has a pool of "loaner" vest for new Auxiliary Police Officers to use while on patrol, afterwards, they are returned and secured by the Auxiliary Coordinator.
Split into simpler sentences: Every Police Precinct, Housing Police Service Area and Transit District has a pool of "loaner" vest for new Auxiliary Police Officers to use while on patrol. Afterwards, they are returned and secured by the Auxiliary Coordinator.