No you cannot. You need a detective mind and legitimate experience to become a detective. A forensics degree helps you work with the facts, but does not give you the ability to think through it. In some countries, it is expected that candidates have a high school diploma or equivalent. Whereas some require formal education in private investigation, criminal justice or related field. For example, Michigan requires applicants to have a bachelor’s or graduate degree in criminal justice, law, security management or computer forensics to qualify for a license.