To become a corporate investigator, you should have a solid understanding of business protocol and hiring procedures. It’s ideal to specialize in an industry to develop your skills further. A bachelor’s degree is preferred in some cases, as well as related work experience. When you’re starting out, look for internships that provide real-world exposure and background screening. Training in computers and topics such as business administration, accounting, auditing, and criminal justice are also helpful. Most states require licensing, and some of them require a certain amount of experience in the field. You also need to pass state and federal background checks and have liability insurance.