Prime Minister's dilemma on early release of prisoners

The Prime Minister says he wants the killers of PC Andrew Harper to stay behind bars. How will he do it? We ask a senior law professor who advised the government on how to manage early prisoner releases.As Simon Levy is set to be sentenced tomorrow, the BBC has spoken to a victim who asks why her own case wasn't enough to stop the rapist and murderer from committing further crimes.Just how unprecedented was President Trump's Air Force One sleight of hand as he left the NATO summit in Turkey?And the Hallmark Channel has been tugging heartstrings for 25 years. We'll explore the secret of its longevity.