Final answer:
GBI Special Agents' primary duties involve investigating crimes related to fraud, enforcing the law in line with Title 18 violations and the FD&C Act, and collaborating with various law enforcement agencies to develop and pursue cases.
Step-by-step explanation:
The primary duties of a GBI Special Agent include investigating criminal cases particularly related to fraudulent activities, adulterated goods, and various forms of fraud such as wire fraud and mail fraud. These agents play a crucial role in enforcing compliance with Title 18 violations and the FD&C Act. They are also responsible for collaborating with other law enforcement agencies such as the FBI, Assistant Attorney General, and Interpol to develop and pursue cases. With a strong background in other criminal investigations, GBI Special Agents are a part of the Office of Criminal Investigations (OCI) which, despite its smaller size with around 200 agents nationwide, undertakes significant cases that come from a variety of sources including ORA, local agencies, and the FBI.