I have been doing a number of private action shoots relating to motocross. While nothing has happened yet it is the nature of the sport that at some time, someone I am photographing (at their request) will (a) crash and or (b) hurt themselves. Can anyone suggest the action I should take to protect myself should someone be injured at one of my shoots? Will a waiver signed by the participant suffice or do I need something else? Does anyone know where I can find an example of a liability waiver should that be all I need? I would just like to make sure I don't leave myself open.

Any advice would be greatly appreciated.

Cheers