Bangladesh, Oct. 15 -- UK Home Secretary Shabana Mahmood has issued a stark warning that Britain is losing control over its borders amid a sharp rise in illegal immigration – a failure she says is eroding public trust in government institutions and the credibility of the state itself. Her remarks, revealed in excerpts from a planned address at a London summit with Balkan interior ministers on October 15, signal an intensifying political storm over the countrys migration crisis, which shows no sign of abating.

Mahmoods admission that “the public rightly expect that their government will be able to determine who enters their country and who must leave” reflects a rare acknowledgment by a senior Labour cabinet official tha...