Ayan Hadi, the wife of convicted terrorist Richard Dart, has been sentenced to 12 months imprisonment suspended for two years for failing to provide information that might have helped in his arrest and prosecution. She was also given a supervision order.
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The twins cubs, which were born in June, have been named Bert and Ernie after characters from Sesame Street.
The two victims died from their injuries in hospital after the explosion in Hertfordshire.
Investigations are continuing into the cause of the crash in chigwell which killed both people on board.