This industry comprises government establishments primarily engaged in criminal and civil law enforcement, police, traffic safety, and other activities related to the enforcement of the law and preservation of order. Combined police and fire departments are included in this industry.

Including:

• Alcohol, tobacco, and firearms control
• Criminal investigation offices, government
• DEA (Drug Enforcement Administration)
• Drug enforcement agencies and offices
• Federal Bureau of Investigation (FBI)
• Federal police services
• Highway patrols, police
• Housing police, government
• Marshals' offices
• Park police
• Police academies
• Police and fire departments, combined
• Police departments (except American Indian or Alaska Native)
• Sheriffs' offices (except court functions only)
• State police
• Transit police