Enrollment in the Police and Firemen's Retirement. System (PFRS) is required for permanent, full-time employees hired in positions of law enforcement or.O Submit your application and option selection to the retirement plan office. • A copy of your marriage certificate. If you are retired, please go to the Retiree and Beneficiary Forms section. Retirement Online now offers more services and time-saving features. Compensation. Each special law enforcement officer shall receive compensation as provided for in the Salary Ordinance of the Borough of Middlesex. Apply to Driver, Parking Attendant, Customer Service Representative and more! Middlesex County Sheriff's Office is committed to protecting life and property. You will be eligible to retire with full benefits at any age after completing 20 full years of creditable service.