It's often a strategic move in legal situations to get a better outcome. His lawyer suggested he should cop a plea to avoid the risk of a harsher sentence.
Pro Tip 2/3
Negotiated Agreement
'Cop a plea' implies an agreement with the prosecution, not just admitting guilt. He was able to cop a plea and received probation instead of jail time.
Pro Tip 3/3
Phrase Connotation
The phrase can carry a negative connotation, suggesting a way to avoid full punishment. Some believe celebrities often cop a plea to dodge serious consequences.