system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it necessary for police officers have a quota?
gpt
Its not, and its actually illegal in many parts the US to give the police a quota. 

The idea behind a quota is that writing tickets // making arrests is a cops job and you can't watch them all the time so you have to have a system to measure their job performance. The problem is that quotas put pressure on officers to write a ticket or make an arrest when a minor infraction or no violation has occurred.