Are there situations in which either non-deadly or deadly force might be justified? Provide at least one example. In which types of situations is it impossible to make a reasonable determination without more information? In this case, what is the next step? For example, what if police are making a valid felony arrest and believe they see a deadly weapon but are mistaken? Does it matter if more than one officer on the scene makes the same (or a different) call? 

Use of deadly or non deadly force may be justified where parties are using self defense. For example a policeman may be in a situation with a suspect that forces him to defend himself by using force i.e shooting at a suspect charging at him with a machete.

If the police are making an arrest regarding a deadly weapon and find out they are mistaken they ought to release the person they are suspecting. The general rule is reasonable suspicion by policeman of a crime being committed. If the suspicion ends up being wrong , the accused must be released.

Step-by-step explanation

Determining when to use force may be hard sometimes if the police has no information hence the need for police to have reasonable suspicion.

If more than one officer makes the same call of arresting a mistaken suspect, the suspect could sue citing incompetence.

The police force may also take disciplinary actions as it sees fit.