⁣Is kettling legal ????
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Kettling has been criticized for being an indiscriminate tactic which leads to the detention of law-abiding citizens and innocent bystanders. ... In England, courts have ruled that kettling is permitted if it is used in good faith, proportionate and enforced for no longer than was reasonably necessary.

Kettling - Wikipedia
⁣What is an example of police misconduct?
Police misconduct may involve witness tampering, police brutality, or malicious prosecution. Other examples of police misconduct include false arrest, assault, tampering with evidence