A Home Office spokesperson said:
The Home Secretary has seen an interim evaluation and has not been convinced by the results. As such, there will be no further roll-out.
The full evaluation will be published shortly.
More top news
A toddler was in need of an unusual rescue after she got a kettle stuck on her head while playing at home in Chile.
British Defence Secretary Michael Fallon is in the Middle East to gather support for the international military campaign against IS.
Beware! The super-sized spiders are coming. And they seem to be everywhere! But why? A warning - this story is not for the faint hearted!