How long does it take to become a Detective?

It depends. If you want to become a police detective, you must first become a police officer. Requirements to become a police officer vary depending on the police department. How you become a detective also depends on the department. Most departments require officers to work as patrol officers for at least 2 (usually more) years before being eligible to become detectives. If you want to become a detective, become the best police officer that you can. Maintain an excellent record and reputation as an officer. Becoming a detective can be a very competitive process. Many officers that want to become detectives won't be able to.