Asked whether he would have pursued the policy while he was PM, Lord Cameron told ITV’s Peston show: “We had a totally different situation because (we) could return people directly to France.
“Now, I’d love that situation to be the case again, that’s the most sensible thing.
“People land on a beach in Kent, you take them straight back to France, you therefore break the model of the people smugglers.
“That’s not available at the moment. It’s simply not possible.”
Asked whether this was because of Brexit, he said: "Because of the situation we're in, because of the attitude of others and all the rest of it."