The best replacement for police is sheriff.

The best alternatives to police are rated as following:
★★★★★  sheriff
★★★  military
★★★  fireman
★★★  firefighter
★★  fire
★★  army
★  police
★  fbi
★  private security
★  gangs
★  state trooper
★  security
★  firefighters
★  corrections
★  public police
★  snow patrol
★  cop
  darth vader
  bad guyz
  paramedic
  firemen
  street racer
  sitz
  soldier
  detective
  gtr
  law enforcement
  suders
  green day
  robbers
  infantry
  correctional officer
  private police
  security forces
  ray ban
  highway patrol
  emt
  criminals
  sheriff difference
  security guards
  army better
  peace officer
  law student
  raf
  zombie games
  ems
  kings of leon)
  cops
  fire scanners

Your alternative for police is not listed? Suggest!
Speaking about police, one probably shouldn't forget about sting.

Other search terms related to police and their ratings are:
★★★★★ sting
★★★★ polygraph
elvis costello
You have in mind a companion for police and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of police in all years. Click on graph for more.
police
sheriff
military