If you're faster you can definitely try to overtake who is in front of you, and obviously you should try to do it in a fair way, as if it would be a fight for the position.
The car in front is entitled to do defensive manouvres, but it's up the driver in front to decide to defend himself from a lapped driver and if it's worth the risk.
In case of incidents the reports are send to the staff that will forward them to RD Admins that will judge the responsibilities.
