Leading motoring lawyers have advised the duke to surrender his licence in a bid to avoid possible prosecution.

The factors considered for a possible prosecution include cost, the quality of the evidence and the operational impact.

Failure to do so will render them liable for penalties of between 30 and 100 per cent and possible prosecution.

Footage of drivers ignoring patrol instructions can be used as evidence by the police for possible prosecution.

It will refer the matter for possible prosecution.