You Are a Police Officer Trying to Find a Kidnap

You are a police officer trying to find a kidnap victim, who has a health problem that requires medical treatment in the next six hours for him to survive. You have located an individual who has admitted to the kidnapping but refuses to provide further information. Your partner says that you should leave the interview room, and he will "encourage" the suspect to talk. You know that your partner is trying to protect you from an allegation of violating the suspect's rights by using force and threats to compel the information from the suspect. You also know that without this action you will likely not find the kidnap victim in time. What do you do? Does your course of action conform with the law? Why or why not?