How Does Inpatient Drug Rehab Work?

A few questions. Only if you know the answer no guesses please. thank you. this is for somebody that was recently in jail.

Is this in a home that is supervised by a police officer or probation officer?

Is the home both male and female patients?

Is the patient allowed to leave the home whenever they want?

Is it actually effective?

Can the patient have a vehicle and cell phone?

Can the patient have company such as the opposite sex come visit them?