Zero tolerance

Punishment policy with no discretion for leniency

A zero tolerance policy is one which imposes a punishment for every infraction of a stated rule. Zero tolerance policies forbid people in positions of authority from exercising discretion or changing punishments to fit the circumstances subjectively; they are required to impose a predetermined punishment regardless of individual culpability, extenuating circumstances, or history. This predetermined punishment, whether mild or severe, is always meted out.

This keyword could refer to multiple things. Here are some suggestions: