Deborah Glass, the Deputy Chair of the IPCC has said that Simon Harwood has been held accountable for his actions and that Ian Tomlinson's death could have been avoided.
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Some posts also linked to false press releases.
Figures obtained by PA show some wannabe motorists took at least 20 tests in a single calendar year.
Poor road markings can make it difficult for road users to distinguish whether it is safe to overtake, parking is allowed or how wide a lane