The investigating officer believes Oscar Pistorius may be a flight risk.
"We don't want another Dewani," the officer says, referring to Shrien Dewani - the British man accused by a South African court of arranging the murder of his wife on their honeymoon there.
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Children's charity Kids Company is being investigated by the Metropolitan Police over criminal allegations.
A senior employee at a 4-star London hotel has been jailed for six years for raping a man who he lured to a fake job interview.
The Philae has now began delivering what is called the "ground truth" by touching and analysing the material on a comet's surface.