@Nonilex
Qualified immunity is a blight on our society as currently applied. The bar for justified used of force should be higher for police officers than for a civilian in a similar situation. An officer should need to prove not only that there was a reasonable fear of harm, but also that they followed all expected protocols to minimize that threat (e.g., didn’t place themself in front of a vehicle, used appropriate deescalation techniques, used the minimal amount of force necessary). I would even argue that the assumption of innocence for a police officer should be set aside - the assumption should be that an officer who killed somebody in the line of duty didn’t follow proper procedures since proper procedures would prevent that outcome. The burden of proof should be on the officer to prove there was sufficient cause for the action they took.
If the community gives an individual the sanction to use force to enforce laws, that sanction should come with responsibility to use it with care. That requires the individual be held to a strict standard of conduct. Otherwise you invite abuse of that sanction.