Indiana Office of Inspector General
Elaine Vullmahn, Chief Counsel, Enforcement & Agency Privacy Officer
Elaine Vullmahn serves as the Chief Counsel for Enforcement and Agency Privacy Officer for the Indiana Office of Inspector General (OIG). Elaine oversees all legal matters related to hotline screening and OIG investigations of potential violations of the Indiana Code of Ethics and criminal statutes within the executive branch of Indiana state government. Elaine leads attorneys and collaborates closely with OIG Special Agents, managing both civil and criminal enforcement actions. These actions are pursued through administrative hearings before the State Ethics Commission and in coordination with local prosecutors to uphold accountability and integrity in public service.
Elaine began her career as an accounting professional. She gained progressive experience in internal audit, fraud examination, and forensic accounting. Seeking to broaden her business knowledge, Elaine earned an MBA before pursuing a law degree. Elaine has over 20 years of leadership experience in legal and compliance roles and brings a multidisciplinary and strategic approach to enforcement and oversight. Elaine holds multiple professional certifications, including CPA, CIA, CFE, CRMA, and CCEP, reflecting her deep expertise in financial and white-collar crime, regulatory compliance, and ethical governance.
Mark Mitchell, Director of Investigations
Mark Mitchell is the Director of Investigations effective August 2020 after having served as the Assistant Director for several years and as special agent since 2007.
Mark earned a B.A. in Business Administration from Indiana Wesleyan University in1991. He attended the Command Officers Course conducted by the Southern Police Institute in 1996 and the 202nd Session of the Federal Bureau of Investigation - National Academy in 2000.
Mark has 44 years of accumulated law enforcement experience that began in 1976 with the Indiana State Police where he served in various positions of responsibility and leadership before retiring in 2003. In 2003 he joined the Indiana Department of Revenue as Director of their Criminal Investigation Section. When Charity Gaming was split off from the Indiana Department of Revenue, he joined the Indiana Gaming Commission as Director of their Charity Gaming Section until 2007 when he moved to the Office of Inspector General as a special agent.
Regan Perrodin, State Ethics Commission Director
Regan Perrodin joined the Office of Inspector General as the State Ethics Commission Director in July of 2024. Prior to joining the Office of Inspector General, Regan served as a Deputy Attorney General with the Indiana Office of Attorney General in their Licensing Enforcement & Homeowner Protection Unit and Administrative and Regulatory Enforcement Litigation Sections. Before serving in State government, Regan had a fellowship to work in housing law at Indiana Legal Services. Regan first moved to Indiana to attend Notre Dame Law School, and she graduated from there in 2020. Prior to law school, Regan attended Rhodes College, where she majored in Commerce and Business.
Teresa Henson, Director of Administration
Teresa Henson joined the Office of Inspector General in November 2024. Prior to joining the Office of Inspector General, Teresa worked with the Department of Child Services, the Office of Attorney General and the State Board of Accounts. Teresa has accumulated 40 years of service in various positions serving the State of Indiana.