Yes - definitely.
No, any citizen can make an arrest, not just a uniformed police officer.
The police officer decided to arrest the suspect after reviewing the evidence.
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.
yes
No.
A police officer making an arrest
No, a police officer cannot issue a warrant for your arrest only a judge or court magistrate can do that.
Assuming that you are a police officer; yes you can. If you are not a police officer you should check with your local laws before wearing a police uniform anywhere.
No. They cannot.
Any police officer or sheriff.
police officers have a criteria on this. On the other hand,for an officer of the law, it would be unethical not to arrest someone he has seen comiting a crime.
The officer can ticket you for the traffic violation, he or she can arrest you if there are mitigating circumstances.