Of course! and they do when it is necessary!
A police officer is subject to the same laws as anyone else, and a few extra laws in many states, and at the federal level, because of their role as a police officer.
Since officers are the same as anyone else, the same requirements for arresting a police officer exist as arresting anyone else. For any arrest probable cause and an arrest authority has to exist.
This is a simplified answer, but essentially, the answer is the same process, and protections that apply to the public apply to the police officer.
Yes, police officers can turn themselves in for breaking the law
Yes.
an arrest warrant.
no, you can not. but police can arrest you.
The police can arrest you ANYWHERE.
There are laws against them - police arrest the perpetrators - victims can protect themselves from them, sometimes by deadly force when warranted.
You could try a citizen's arrest but the police man may refuse to be arrested. It is only a warranted police officer that is empowered by society to forcibly arrest someone.
Police officers can arrest you
No
The police decided to arrest the suspect after gathering enough evidence of the crime.
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.
They arrest you if you have possesion of it.
Yes
There is no such thing as an illegal argument so the illegal police will not arrest you.