Can you continue driving in this situation?

In the video you are approaching a junction with traffic lights in a town; the traffic lights show green, but in the middle of the junction a police officer in a high-visibility vest is standing with his back to you. In this situation you cannot continue driving. The answer is: no.

The Road Traffic Act states that instructions and signals given by persons directing traffic take precedence over light signals and road signs, and a road user must follow them even when the rules indicate a different way of behaving. The Regulation on road signs and signals states that a position in which the person directing traffic is facing the approaching vehicles with his front or back means a ban on entering the junction or the stretch of road beyond the person directing traffic; permission to enter is given only by the side-on position. The police officer has his back to you, and the Regulation treats the back the same as the front, so the green light means nothing - it is as if the red light were on. You stop before the junction and wait until the police officer turns sideways to you or raises his arm, announcing a change of signal. Remember the order: the person, then the lights, then the signs.

Legal basis: Art. 5 para. 1 and 2 of the Road Traffic Act (Prawo o ruchu drogowym); § 108 para. 1 and 3 of the Regulation on road signs and signals