Use 'crack down' in situations where authority is taking action against rules being broken.

Context Matters

'Crack down' suggests there will be consequences for wrongdoing, usually enforced by authority.

Consequence Connotation

'Crack down' implies a sudden or increased intensity in enforcement rather than a gentle approach.

'Crack down' implies using more severe or stricter measures than before.

When 'cracking down,' there is usually a specific issue or group being targeted.

A 'crack down' often occurs in response to a perceived increase in undesirable activity.