clamp down on

We've got to really clamp down on this.

The government's Renters' Rights Bill, currently passing through Parliament, is due to create a national database of private rented properties in England, which will help councils "clamp down on unlicensed properties", London's deputy mayor for housing Tom Copley told the BBC.

It says it expects local authorities to "clamp down on rogue landlords" and "HMOs must be safe, well-maintained, and properly managed".

Specially trained staff in male prisons in England and Wales will be issued with Tasers as part of a new trial to clamp down on violence.

The charity hopes a new law that has been proposed, which will be debated in the House of Lords, will help to clamp down on dog and cat smuggling.