We have also seen the use of tear gas. I don't want the police to hurt anyone, but I haven't seen any long term damage from its use.
If police are going to use force, from what I have seen, tear gas is less dangerous. It is still awful. I'd rather it not be used, but I just wanted to share what I've seen.
In Venezuela, police forces killed a student and have injured hundreds of people by shooting the canisters straight at protesters.
They also killed at least two people and horribly injured thousands by shooting at them point blank with rubber bullets.