deterrent

Recently France and the UK agreed on a "one in, one out" returns deal, which was designed as a deterrent to stop boats from crossing the Channel.

Friends of the Earth said unless there was a more effective deterrent there would be "more and more of these shocking crimes against water".

“That at least begins to set a deterrent for the federal government going too far on this.”

The example of this double accountability may act as a deterrent for other Brazilian leaders who might want to follow his examples.

Ministers have praised the returns, with deputy prime minister David Lammy saying they provided an "immediate deterrent" to people seeking to cross the Channel.