Mounting GoPro type camera to mask

[prab]

Originally Posted by bniu

My local association is encouraging umpires to wear action cameras while on the plate (so we can use the footage for both training purposes and also for liability purposes too) and I'm wondering, for those of you who have mounted cameras to your mask, where's the best place to mount them? Any special mounts used to keep the cameras safe?

Please give an example of how your association plans to use this technology for training purposes and for liability purposes.