What can you not do when involved in an accident in which there are casualties?

Description
Art. 44 para. 2 pt. 2 of the Act of 20 June 1997 - The Road Traffic Act (Journal of Laws of 2012, item 1137, as amended).
Explanation
Correct answer: Move the vehicle to the hard shoulder.
If someone is injured or killed in a crash, do not move the vehicles merely to clear traffic. Secure the scene, call for help and assist casualties while avoiding unnecessary disturbance of evidence. Saving life and addressing immediate danger take priority; preserving the scene must not prevent essential rescue actions.