If you see a traffic officer with an arm raised vertically, what maneuver or order are they indicating to you?

Question

DentroTest · Accepted Answer

According to the General Traffic Regulations, an officer who raises an arm vertically imposes the obligation to stop on all road users approaching the officer, except drivers who are unable to do so with sufficient safety; if the signal is given at an intersection, it does not oblige those who have already entered it to stop. Signals given by traffic officers prevail over any other road signaling (traffic lights, vertical signs or road markings) and over the general priority rules. Speeding up is not ordered by any officer's signal: the arm extended and moved alternately up and down in fact orders drivers to slow down. And this body signal neither authorizes nor requires turning left either.

If you see a traffic officer with an arm raised vertically, what maneuver or order are they indicating to you?

Want to pass the Permit AM (English) theory test first time?