What is the primary action required if you arrive first at the scene of a traffic accident involving an injured motorcycle rider?

1. Secure the accident scene (hazard lights, warning triangle), call emergency services (124/112/122), and do NOT remove the rider's helmet unless they are not breathing and airway management is impossible with helmet on
2. Remove the rider's helmet forcefully and shake them awake
3. Pull the rider immediately onto their feet and make them walk
4. Leave the scene without reporting to avoid being involved