Mark G. Joachim

ICE - Section Chief (Ret.)
Senior Investigator & Security Consultant

Mark G. Joachim has over 26 years of distinguished federal law enforcement, security operations, and investigative experience. A recently retired Section Chief for the Special Investigations Unit within U.S. Immigration and Customs Enforcement’s (ICE) Office of Professional Responsibility (OPR), he directed critical and sensitive operations regarding internal investigations, counterintelligence, and executive misconduct. Prior to this role, as a Homeland Security Investigations (HSI) Supervisory Special Agent, he commanded a High Intensity Drug-Trafficking Area (HIDTA) Task Force and led a financial fraud task force focused on proactive money laundering targeting and the dismantlement of transnational criminal organizations.

During his tenure, Mr. Joachim oversaw and executed numerous high-stakes operations, including serving as the Group Supervisor for numerous undercover operations. His investigative efforts have resulted in significant milestones, including the successful location and extradition of a child predator from Monterrey, Mexico, the infiltration of a Canada-based transnational criminal organization, and securing a 30-year federal prison sentence for a smuggler whose actions resulted in the deaths of five foreign nationals. Furthermore, his meticulous administrative investigations into Prison Rape Elimination Act (PREA) cases successfully drove agency-wide policy changes.

Beyond his domestic operational leadership, Mr. Joachim served as the HSI Assistant Attaché at the U.S. Consulate General in Monterrey, Mexico. In this diplomatic role, he managed a large budget, provided technical guidance to foreign government officials, and established critical liaisons with the Overseas Security Advisory Council (OSAC) and Mexican National Bank anti money laundering investigators. A recognized leader and crisis management expert, he also served as the first Crisis Negotiation Team Commander for the HSI San Antonio field office, successfully expanding the team from one to twelve members. He has collaborated extensively with inter agency partners, having served as an agency representative on the FBI’s Joint Terrorism Task Force (JTTF) and the Bexar County Human Trafficking Task Force.

Drawing on his Top Secret/SCI-eligible clearance and fluency in Spanish, Mr. Joachim offers deep operational insight into risk assessment, complex investigations, and compliance. He leverages his extensive frontline experience to help navigate complex security programs and deliver exceptional investigative services.

Education: B.S., Criminal Justice Administration, Columbia Southern University

Selected Honors & Awards: Assistant Attorney General’s Award for Distinguished Service, Assistant Director for OPR Award for Investigative Excellence, and Secretary of Homeland Security Award for Excellence

Clearance & Languages: U.S. Top Secret (SCI-eligible) Spanish (Fluent, ILR-3)