Instead (Marzouki) intended to break off the relationship and abscond with the diamond engagement ring.

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The documents say that due to the nature of open prisons it can never be guaranteed that prisoners do not abscond.

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She said she wanted to make sure Mr McCarney, who she described as "a complete maniac", did not abscond before the police had an opportunity to arrest him.

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Writing on Twitter earlier, Mr Anderson questioned whether Mr Magag would have been able to abscond as easily from south-west England, where he was held under his control order from 2009 until 2011.

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Historically, we know what encourages convicts to rehabilitate: they must be young, non-violent, dispersed into small communities that know what they are up to, compelled to work, remunerated and punished if they abscond or reoffend.

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"Theresa May needs to explain rapidly why surveillance failed on Ibrahim Magag since Christmas and whether her decision to return him to London and to weaken legislation has made it easier for him to abscond and harder for the police to find him now, " she said.

BBC: Labour questions TPims as terror suspect absconds