Fun fact, in the US military and a number of other armed forces (including british police) there's no such thing as an accidental shooting. If the gun goes off and you didn't intend to, it's a negligent discharge, which is a chargeable offense. Period. Either she did it on purpose and faked the taser stuff for the body cam, or she's so grossly incompetent she got a civilian killed.
It's absurd that we hold the police to a lower standard.
Anyway, a traffic stop should end in a ticket or warning, period. Police should have no prerogative to search or serve a warrant on a traffic stop. That would eliminate a huge source of danger and violence in police interactions. If you run a guy's plates and it's reported stolen or he's got a warrant for something violent, you don't just start shit right there on a public road. You back off and notify HQ and a plan is put together.
And you don't fucking search people's cars for drugs on a traffic stop. I've had my car searched before, it's terrifying. As soon as you start searching a dude's car, if he's got something illegal in it that's now a life-and-death confrontation for him, and by extension, for the cop. Eliminate that element entirely. Legalize or at least decriminalize all possession for use and take the prerogative to arrest for more serious possession/trafficking from dudes making traffic stops.
But of course it's not about that, and it never was. If you didn't let cops search on traffic stops they wouldn't make traffic stops anymore cause they were never about enforcing road laws.