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Derry video: Investigation into claim police left woman in bus lay-by

19 March 2014 Last updated at 18:31 GMT

The Police Ombudsman has launched an investigation into video footage that appears to show police officers leaving a incapacitated woman in a bus lay-by

The two officers drove off after the incident, which is said to have happened in John Street, Londonderry, on St Patrick's Day.

Keiron Tourish reports.

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