Overview
Louis J. Milione is president of Global Investigations and Regulatory Compliance at Guidepost Solutions. He brings nearly three decades of experience across senior federal law enforcement leadership and complex private-sector investigations. He has directed and overseen high-risk, transnational investigations involving corporate misconduct, sophisticated criminal networks, corrupt officials, and regulatory violations, advising government agencies, boards of directors, and executive leadership in sensitive matters with significant legal and reputational exposure.
Mr. Milione rejoined Guidepost in August 2023 after serving as the Drug Enforcement Administration’s Principal Deputy Administrator (2021–2023), where he helped lead an agency of more than 10,000 personnel across 334 offices worldwide. During his 23-year DEA career, including service in multiple senior leadership positions, he directed transnational investigations and oversaw global intelligence and pharmaceutical regulatory enforcement programs worldwide.
He previously served at Guidepost from 2017 to 2021 as a senior managing director in the Monitoring, Compliance, and Investigations practice, where he led complex cross-border investigations, corruption matters, and regulatory engagements, and founded the firm’s Controlled Substances Act and DEA regulatory compliance capability.
Selected Guidepost Matters
- Global sports regulatory investigation: Directed a multi-year, cross-border investigation into alleged systemic corruption and abuse of authority within a global governing body overseeing a major international sport with significant U.S. commercial interests. Led witness interviews across multiple jurisdictions, developed documentary and testimonial evidence, and presented investigative findings to the U.S. Department of Justice.
- Transnational investigation involving Former Central Asian official: Led a complex investigation spanning Central Asia, Eastern Europe, Western Europe, and the United States concerning a targeted attack against a former senior government official. Directed witness development and source inquiries, reconstructed communications and travel, and developed evidentiary linkages among political actors, security services, organized crime elements, and financial intermediaries.
- Mining-sector corruption matter: Directed a corruption investigation into adversaries on behalf of a publicly traded hedge fund involving fieldwork and investigative activity in Uganda, the Democratic Republic of Congo, South Africa, South America, and Europe. Led development of key witnesses and documentary evidence concerning government concessions, payments, and cross-border financial flows. The evidence proved devastating to adverse litigants and saved the client hundreds of millions of dollars in a negotiated settlement.
- Global financial institution investigation (Asia/Europe): Directed a sensitive cross-border investigation examining institutional decision-making and external interactions surrounding a significant market event.
- National college sports organization investigation: Directed an investigation into an alleged coordinated scheme involving improper intelligence-gathering, misuse of funds, and related compliance and fraud concerns within a nationally prominent college sports organization. Uncovered significant misconduct during the investigation.
- Corruption investigation in Juarez, Mexico: Directed an investigation on behalf of a publicly traded energy company involving alleged corruption and misconduct. Led on-the-ground investigative activity, conducted witness interviews, and developed evidence regarding interactions with local officials and related compliance exposure.
- Workplace misconduct investigation (Mexico): Directed a rapid-response investigation into hostile work environment and sexual harassment allegations for a Mexico-based automotive component manufacturer. Deployed investigative teams across seven regions, oversaw more than 70 interviews, and developed factual findings for corporate leadership.
- Energy infrastructure security assessment (West Africa): Led an on-site operational risk assessment of a major energy facility. Conducted site inspections, interviewed personnel and local stakeholders, and evaluated physical security, transportation routes, and surrounding community dynamics.
- Executive threat matters: Led protective intelligence investigations involving senior executives at two global financial institutions during acute threat situations. Directed subject identification and background investigation, developed threat assessments based on evidentiary review, and coordinated surveillance and mitigation measures.
- Advisory role – Republic of Liberia Capitol arson investigation: Served as an expert advisor to the Liberia National Police in connection with the investigation into the alleged arson of the national Capitol Building. Advised on conspiracy doctrine, evidentiary linkage among actors, and investigative strategy.
- Directed the assessment and remediation of the Controlled Substances Monitoring Program for the nation’s largest privately held full-line wholesale drug distributor, including review of controls, transactional testing, and regulatory risk evaluation.
- Led pre-acquisition due diligence and post-acquisition remediation of controlled-substances protocols for a publicly traded DEA-registered reverse distributor. Directed document review, compliance assessment, executive interviews, and implementation planning.
Professional Background
Prior to joining Guidepost in 2017, Mr. Milione served for 23 years with the Drug Enforcement Administration, overseeing complex investigations and pharmaceutical regulatory enforcement across North America, Central America, South America, Europe, Africa, Asia and the Middle East.
From 2021 to 2023, he served as Principal Deputy Administrator, overseeing worldwide operations, intelligence, regulatory enforcement, and administrative functions across 334 offices globally.
From 2015 to 2017, he served as Assistant Administrator of the DEA’s Diversion Control Division, regulating more than 1.65 million DEA registrants across the pharmaceutical supply chain and leading national efforts to prevent, detect, and investigate diversion of controlled substances.
Before leading DEA’s Diversion Control Division, Mr. Milione served as the Assistant Special Agent in Charge (ASAC) of DEA’s Bilateral Investigations Unit (BIU), which is part of DEA’s Special Operations Division. He planned and executed high risk investigations involving multi-tiered criminal networks, high-level transnational criminals, and corrupt foreign officials. For more than a decade, from his selection as a founding member of the BIU in 2002, through his promotion to, and tenure as ASAC, Mr. Milione and his teams operated throughout Africa, Asia, Latin America, Central America, the Middle East and Europe, spearheading some of the Justice Department’s most sensitive and significant criminal investigations.
He began his DEA career in 1997 as a Special Agent in New York.
Mr. Milione has received numerous awards, including the Service to America Medal for the investigation of Viktor Bout, the National Association of Police “Top Cop” award, and the Anti-Defamation League Leon and Marilyn Klinghoffer Memorial Award for the Monzer Al Kassar investigation.
He is a graduate of Villanova University and Rutgers School of Law.
