Sigma metrics as a valuable tool for effective analytical performance and quality control planning in the clinical laboratory: A retrospective study

Park police are a type of security police who function as a full-service law enforcement agency with responsibilities and jurisdiction in park areas primarily located in cities and other urban areas. In addition to performing the normal crime prevention, investigation, and apprehension functions of a municipal police force, the park police may be responsible for policing other public areas and may also share law enforcement jurisdiction with a force of park rangers tasked with the same law enforcement powers and responsibilities.

• List of protective service agencies
• Federal police
• Category:Park police departments of the United States