Your best bet is to not. Realistically though, almost every state provides citizens the right to make an arrest if they personally see the commission of a crime, or have probable cause to believe a suspect committed a felony. However, detaining your "suspect" might actually be considered false imprisonment or even kidnapping if you violate someone's legal rights in the process. That is just the criminal liability you may endure. In addition, there is the question of civil liability you may incur from detaining your "suspect". Some states, however, have specific laws allowing individuals to protect their "domain" or home and property with lethal force. In addition, if any individual threatens your safety, you can use lethal force to prevent this from happening. Making a citizen's arrest of a person that threatened your safety would be hard to prove however, if you managed to gain full control and custody of…