Hi,
Item 1
It does nothing to increase safety and nothing in accident prevention.
I agree 100 %
Item 2
Any potential suicide would simply block it
I agree 100 % (but it's more like individual case)
But .. the result of item 2 is a fast conclusion for the investigators....
In some cases .. the option suicide was retained as possible cause and so .. polluted the investigations.
If the camera lens is blocked .. you have the answer by extrapolation
If the camera lens is not blocked .. you assist as spectator of the suicide... if any.
Conclusion:
No increasing of safety or prevention.. but great help for investigators.
Regards.