This discussion is actually quite interesting given a reading I just did for a paper I'm writing. The text discusses an Italian philsopher -
Giorgio Agamben, who discusses how
sovereignty, and the power of the sovereign, is actually based on exceptions to what the regular social laws are. This basically means, that sovereign power functions by creating situations where it doesn't have to follow it's own laws (like the USA and Guantanamo Bay), and according to Agamben, eventually this sovereign power shifts from a leader to the police - where the police are able to act without the command of some higher power.
Situations like this taser incident, while shocking, do not come as a surprise to someone like Agamben, who sees these kinds of acts as the hidden rule of our structures of power, and according to him, we will likely see more and more of these situations coming up and making visible the inherent violence of our current political systems.
So rather than this being an example of one police officer who was a "bad seed", the situation at UCLA demonstrates the broader structure that allows the police to be able to taser someone, even if it's against its own rules, in the first place.
[Note: ok, this was written after spending 24hrs working on this paper ;P Sorry if it's too much, but sometimes I just need to put down on a page the things I'm thinking that can't go into a paper]