Britain said it will begin implementing a deal to return some migrants who arrive on small boats to France within days, a key part of its plans to cut illegal migration, after a treaty on the arrangement is ratified on Tuesday.

The UK government said it would begin detaining small-boat migrants “within days” to be sent back to France, as the two countries prepared to formalize a “one in, one out” treaty on Tuesday.

Tories say the deal will make ‘no difference whatsover’ amid reports the pilot scheme will see only 50 people a week returned to France