If the officer believes it is "justifiable cause" yes, he can.
In certain situations, YES.
The police officer does not own the police car, the jurisdiction he works for owns it, and yes a uniformed officer can drive an unmarked vehicle.
A police officer has that discretionary power .
If a police officer takes custody of a vehicle, it is usually said he impounds the vehicle.
Yes, if they believe you are holdng something or someone they can. Some states have a law where if the police officer can reach in you vehicle,they can take whatever they need to arrest you.
Not if you're dead.In other situation, it is a case for Internal Affairs. They will do research and if the killing was illegal, the officer will be prosecuted.Added; ALL police shootings are presented to either the Court or a Grand Jury for legal rulings on the justifiable use of deadly force. If the findings are justifiable you could attempt to bring suit against the officer or the department but it would probably be somewhat futile. Consult with an attorney who practices in your area for further information.
My son was pulled over by local police because music from sons' vehicle loud. The officer called for an additional officer to pull sons' vehicle over. The police then searched my sons' vehicle and sent him on his way - no citation, warning - nothing. The police officer never requested proof of title/ins.
You ask the police officer, or they would've turned in their badge,you would see them without a badge.
Yes in an emergency
If you are a police officer then watch it on your computer!
The police should obey the law just like everyone else.
I'm not familiar with the term "Excusable" Homicide. Justifiable Homicide occurs when it is ruled (usually a Grand Jury) that a death of someone was proper and occurred within the bounds of law (i.e.: the shooting death of an armed bank robber by a police officer).