Did what anyone else would've done in that situation.
While I am an absolute dog lover, I'm not sure what the alternative for the police was. Is there a trick to get the dog to unclamp its jaws that they weren't aware of? It's not like they jumped to stabbing the dog, they tried non-lethal force initially. Of course it would probably have been better to try and ascertain whether or not a dog was present first and have dog handlers present in case something like this happened, and I'd like to know whether or not any effort was made to establish that fact.
This. Don't see an issue.
Can't see the issue in these circumstances.
Should have tazered it.
At dog training once I was told that the only way was to hold a cigarette lighter under it if you were brave enough.