I am not familiar with all California law but I would say the answer to this question is yes. A police officer can answer your cell phone, but, they may not search (look at contacts etc.) without a warrant.
NO. He can search your car if he has just cause without a warrant.
Only where probably cause exists.
no no
Yes, of course. An arrest warrant is a command from a judge to arrest a person. Usually a police officer has no choice and must arrest.
No.
No, a police officer cannot issue a warrant for your arrest only a judge or court magistrate can do that.
Yes, the officer may search. Police may search a building if they reasonably believe a valid search warrant has been issued. They do not have to possess the search warrant.
It does not seem reasonable or possible.
Warrant officer of indian air force is equivalent to sub inspector of police in rank but not as portfolio
I think they can walk the premises but i don't think they can enter your home without a warrant.
A warrant.
If the officer reasonably believes the warrant is valid, then the officer is protected from any legal (or civil) consequence. However, the key phrase to that is "the officer reasonably believes".If someone manages to prove that the officer "should have known better", or that the officer lied in order to have the warrant issued, the officer can be held liable, as they knew the warrant was invalid.