clamp down

v 1: get serious about enforcing a rule; "We have to clamp down

and get tough on the dissidents" [syn: {get tough}]

2: become more restrictive or repressive; impose strict

controls on; "They are clamping down on under-age drinking

now"

3: repress or suppress (something regarded as undesirable);

"The police clamped down on illegal drugs" [syn: {crack

down}]