To become a detective in Oklahoma, particularly with the Oklahoma State Bureau of Investigation (OSBI), candidates do not need to have prior detective training. However, it is essential for applicants to possess a solid understanding of the criminal justice system and the various investigative protocols that are commonly employed in law enforcement. One way to demonstrate this knowledge is by obtaining a bachelor's degree in relevant fields such as Police Science or Law Enforcement. These educational backgrounds provide foundational knowledge about criminal behavior, legal procedures, and investigative techniques, which are crucial for a successful career as a detective. Additionally, aspiring detectives typically start their careers as police officers, gaining practical experience and skills that will be invaluable in their future roles. After fulfilling the necessary requirements and gaining experience, individuals can apply for detective positions within their respective law enforcement agencies.