Question

what is the work of the police

Answer 1

A police officer, also known as an officer, policeman, policewoman, cop, police agent, or a police employee is a warranted law employee of a police force. In most countries, "police officer" is a generic term not specifying a particular rank. 

Answer 2

Responsibilities of a police officer are varied, and may differ greatly from within one political context to another. Typical duties relate to keeping the peace, law enforcement, protection of people and property and the investigation of crimes. Officers are expected to respond to a variety of situations that may arise while they are on duty. Rules and guidelines dictate how an officer should behave within the community, and in many contexts, restrictions are placed on what the uniformed officer wears. In some countries, rules and procedures dictate that a police officer is obliged to intervene in a criminal incident, even if they are off-duty. Police officers in nearly all countries retain their lawful powers while off duty.

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