clamp down on
US /klæmp daʊn ɑːn/
UK /klæmp daʊn ɑːn/

1.
tomar medidas enérgicas contra, reprimir
to become more strict about something, or to try to stop something bad from happening
:
•
The police are clamping down on illegal parking.
La policía está tomando medidas enérgicas contra el estacionamiento ilegal.
•
The government plans to clamp down on tax evasion.
El gobierno planea tomar medidas enérgicas contra la evasión fiscal.