Boris Johnson appears to have won his battle over control of London's fire service.
Opposition politicians on the fire authority have backed down in a fight over cuts after the Mayor threatened to sue.
In the Labour amendment, they said that they conceded to the Mayor on this occasion with great reluctance.
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Tencho Hristov ignored warnings and got trapped between barriers at Roydon in Essex.
The 6km bike track will include 130m of the South Circular near Kew Bridge.
The unfortunate officer was taken to a central London hospital for treatment and his condition is not life-threatening.