The Body Camera Is a Lens Through Which We See the World

Group identity is like a lens through which we see the world, i think this might explain why some things that we feel should provide objective answers to complex social problems sometimes fail to do so. There's been controversy in recent years about police shootings of civilians. Both protesters and police have assumed that the body camerais being worn by police officers, these can provide an objective answer as to who's in the right. What are these protestors and t police officials getting wrong?