Gaolers
Gaolers, also spelled jailers in American usage, are prison officers responsible for the custody and supervision of inmates in a gaol or jail. The term "gaol" is an older spelling still used in British English; a gaoler is the official who runs the facility. In many jurisdictions they are called custodial officers, correctional officers, or jail staff.
Core duties include maintaining security and order, supervising inmate movement, guarding cells, and enforcing facility rules.
Training and oversight typically cover safety, crisis intervention, restraint techniques, and knowledge of inmates' legal rights.