Sherrif's Assistance is a job title that refers to a group of people who assist the sherrif in law enforcement activities. The term POSSE is used to describe this group of people, which is an acronym for 'Pursuit Of Suspects and Service of Execution'. This group of people are usually volunteers who are deputized by the sherrif to help with law enforcement activities such as searching for suspects, serving warrants, and providing security at public events.