If a licensed gangmaster is found to have not complied with the standards required by the GLA, the authority can revoke their licence but it cannot prosecute them - that is currently a matter for the police.
And these can be used for far more than just 3D images taken as the Concept GLA drives along: the HD cameras can be removed and, for example, fitted to a mountain bike helmet.
Now added to this is a GLA station in Dover that broadcasts corrections to eLoran that makes signals so precise ships can enter harbours using them in the event of GPS failure.