Can an investigation and Administrative Complaint ultimately lead to criminal charges against me?

Yes. Allegations of drug diversion or abuse, health care fraud, improper sexual conduct, theft of property of patients, their families, or from your employer, practicing beyond the scope of your license, or without a license are only some of the claims that may lead to criminal charges. The various state departments have direct access to each other, and do communicate freely when violations are identified. Conversely, criminal convictions almost always result in reports to the licensing Board, where you have been convicted of a misdemeanor or felony.