3.Other stopping procedures  107. Driver and Vehicle Standards Agency Officers have powers to  stop vehicles on all roads, including motorways and trunk roads, in  England and Wales. 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.  108. Traffic Officers   have powers to stop vehicles on most motorways  and some ‘A’ class roads, in England only. If traffic officers in  uniform want to stop your vehicle on safety grounds (e.g. an  insecure load) they will, where possible, attract your attention by  ● flashing amber lights, usually 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 (download ‘Signals by authorised persons’).  Laws RTA 1988, sect 67, & PRA 2002, sect 41 & sched 5(8)  You MUST   then pull over and stop as soon as it is safe to do so. Then  switch off your engine. It is an offence not to comply with their  directions (see ‘Signals by authorised persons’).  Law RTA1988, sects 35 &163 as amended by TMA 2004, sect 6  highwaycodeuk.co.uk 60 