He was released after serving half his prison sentence, only to be detained for a further six months for breaching a condition of his licence.

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It said he was also facing charges of taking insufficient daily and weekly rest periods, using a vehicle in a condition likely to cause danger of injury, and not having the correct licence entitlement to drive the coach involved in the crash.

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In 2002 rt-PA was given an EU licence on condition it was used on patients under 80 within three hours of them having an ischaemic stroke.

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