While the system cost around £160m to set up in2002, it generates significant revenue every year, which is invested inimproving the transport network. In 2011/12 Congestion Charging raised around£137 million to be spent on other transport initiatives within London.
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A post-mortem report found no traces of drugs or alcohol, and the evidence suggests Simon Brown was not taking photos.
The masked men used an angle grinder to tear through the lock.
Doing as little as possible in the first minute helps people regain control of breathing and increases chances of survival, says the RNLI.