Driver and Vehicle Standards Agency officers have the power to stop vehicles on all roads, including motorways and trunk roads. They will attract your attention by flashing amber lights

  • either from the front requesting you to follow them to a safe place to stop
  • or from behind directing you to pull over to the side by pointing and/or using the left indicator.

It is an offence not to comply with their directions. You MUST obey any signals given (see ‘Signals by authorised persons‘).


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