David Cameron has hinted at a major announcement on immigration policy as he visited Rochester and Strood ahead of a crucial byelection.
"Of course it is one of the most important issues in this election," he said. "We will be setting out further steps in the weeks ahead."
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Neil ‘Razor’ Ruddock, Jake Quickenden and Dan Osborne are among the famous faces taking part in the match in Saffron Walden, Essex.
The measures are set to be unveiled on Monday.
The blacklist includes illegal landlords convicted over shoddy housing and other serious crimes.