Private Investigator (Ca License Number 189803)
Current
Drumdutton Investigations - Owner/Operator
Oct 2024 - Present
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Brian Dennison Email & Phone Number
Private Investigator. DrumduttonInvestigations@outlook.com
at
National University
1 work email found
@oig.dhs.gov
LinkedIn matched
✓ Verified August 2026
4 data sources
Profile completeness 100%
Current company
Role
Private Investigator. DrumduttonInvestigations@outlook.com
Location
Chula Vista, California, United States
Who is Brian Dennison? Overview
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Quick answer
Brian Dennison is listed as Private Investigator. DrumduttonInvestigations@outlook.com at National University, based in Chula Vista, California, United States. AeroLeads shows a work email signal at oig.dhs.gov and a matched LinkedIn profile for Brian Dennison.
Brian Dennison previously worked as Private Investigator (CA License Number 189803) at Drumdutton Investigations - Owner/Operator and Retired at Federal Government. Brian Dennison holds M.A., Edmund Walsh School Of Foreign Service, Center For Latin American Studies from Georgetown University.
Company email context
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{first}.{last}@oig.dhs.gov
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Profile bio
About Brian Dennison
Experienced Criminal Investigator/Special Agent with a demonstrated history of working in the law enforcement and Federal Government industry. Skilled in communication, relationship-building, trust-building, verification, surveillance, leadership, interviewing, and criminal, personnel and highly-sensitive, internal Investigations requiring a top-secret security clearance. Expertise in border-related issues including human trafficking and narcotics smuggling, trans-border criminal organizations, migration, and immigration-related issues and laws, as well as investigations involving contract fraud, fraud, wasted and abuse. Also experienced in departmental policy and program reviews at a local and national level. Experienced investigator involving matters of law enforcement use-of-force policies, and death-in-custody matters.Educated and experienced professional with a M.A. from the Edmund Walsh School of Foreign Service, Center for Latin American Studies at Georgetown University and a B.A. in International Relations from Loyola Marymount University.Also an experienced Adjunct Professor of Homeland Security Studies in the graduate and undergraduate programs instructing on all issues related to the functions of the Department of Homeland Security, U.S. homeland security-related issues, leadership, management, disaster management and FEMA, cyber security and cyber warfare, immigration and global migration, law enforcement, border transportation security, border security, and national security.
Listed skills include Ethics And Compliance, Internal Investigations, Criminal Investigations, Surveillance, and 10 others.
Current workplace
Brian Dennison's current company
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14 roles · 32 years
Brian Dennison work experience
A career timeline built from the work history available for this profile.
Retired
Current
Federal Government
Jun 2024 - Present
Adjunct Professor
Current• Adjunct Professor, Homeland Security Studies, National University, 32nd Street Naval Base, San Diego, CA, and Camp Pendleton, CA, Carlsbad, CA. Teaching graduate and undergraduate students obtaining B.S. and M.S. degrees in Homeland Security Studies. Courses covered include immigration, leadership, border transportation security, FEMA and disaster management, Department of Homeland Security functions, cyber warfare and cyber security, law and other related courses.
2015 - Present
~11 yrs 7 mos
Investigator
Feb 2022 - Jun 2024
Lead Criminal Investigator
Activities as Senior Special Agent/Lead Criminal Investigator include Team Leader and Mentor, and conducting sensitive criminal investigations of a highly sensitive nature pertaining fraud, waste and abuse, and to the security and integrity of the Department of Homeland Security (DHS), in addition to high-profile, Congressionally-mandated inquiries involving ethics and compliance with applicable laws, regulations, policies and procedures. Investigations included trans-national criminal organizations involved in the smuggling of narcotics and trafficking of people, as well investigations and reviews of officer-involved shootings, deaths in custody, and major civil rights allegations. Top Secret security clearance.
2009 - May 2021
Assistant Special Agent In Charge
Activities as (A) Assistant Special Agent in Charge include leadership and management of the San Diego Field Office, and three additional outlying resident offices covering the entire state of California. Leadership responsibilities and experience include managing day-to-day operations of criminal investigations, staffing, interviewing, employee counseling and guidance, administrative management to include budgeting, fleet management and time and attendance, and liaison with other law enforcement agency managers and the United States Attorney’s Office. Top Secret security clearance.
2011 - 2013
~2 yrs
Border Corruption Task Force - Federal Bureau Of Investigation
2008 - 2010
~2 yrs
Public Corruption Task Force - Federal Bureau Of Investigation
2005 - 2008
~3 yrs
Special Agent/Criminal Investigator
Activities as Special Agent/Criminal Investigator include criminal investigations of a highly sensitive nature pertaining to the security and integrity of the Department of Homeland Security (DHS). Investigations include cases involving DHS employees and contractors engaged in criminal activities, including, but not limited to, narcotics trafficking, alien smuggling, fraud and abuse.Security Clearance: Top Secret
2004 - 2008
~4 yrs
Special Agent/Criminal Investigator
Activities as Special Agent/Criminal Investigator include criminal investigations of a highly sensitive nature pertaining to the security and integrity of the Department of Homeland Security (DHS). Investigations include cases involving DHS employees and contractors engaged in criminal activities, including, but not limited to, narcotics trafficking, alien smuggling, fraud and abuse.Security Clearance: Top Secret
2003 - 2004
~1 yr
Joiint Terrorim Task Force (Jttf) Federal Bureau Of Investigation - Task Force Member
2003 - 2004
~1 yr
Public Corruption Task Force - Federal Bureau Of Investigation
2002 - 2003
~1 yr
Special Agent/Criminal Investigator
Activities as Special Agent/Criminal Investigator included conducting criminal, civil and administrative investigations pertaining to the integrity and security of operations at the Department of the Treasury. Security Clearance: Top Secret
2001 - 2003
~2 yrs
Inspector
Department Of Justice, Immigration And Naturalization Service
Duties of an Inspector included daily inspections of arriving citizens and aliens. Law enforcement activities included attempting to prevent the entry of illegal aliens, narcotics traffickers, criminals and terrorists. Served collateral duty for two years as an INS Intelligence Officer.
1995 - 2001
~6 yrs
2 education records
Brian Dennison education
M.A., Edmund Walsh School Of Foreign Service, Center For Latin American Studies
B.A., International Relations/European Studies
FAQ
Frequently asked questions about Brian Dennison
Quick answers generated from the profile data available on this page.
What company does Brian Dennison work for?
Brian Dennison works for National University.
What is Brian Dennison's role at National University?
Brian Dennison is listed as Private Investigator. DrumduttonInvestigations@outlook.com at National University.
What is Brian Dennison's email address?
AeroLeads has found 1 work email signal at @oig.dhs.gov for Brian Dennison at National University.
Where is Brian Dennison based?
Brian Dennison is based in Chula Vista, California, United States while working with National University.
What companies has Brian Dennison worked for?
Brian Dennison has worked for Drumdutton Investigations - Owner/Operator, Federal Government, National University, Federal Public Defender, and U.S. Department Of Homeland Security.
How can I contact Brian Dennison?
You can use AeroLeads to view verified contact signals for Brian Dennison at National University, including work email, phone, and LinkedIn data when available.
What schools did Brian Dennison attend?
Brian Dennison holds M.A., Edmund Walsh School Of Foreign Service, Center For Latin American Studies from Georgetown University.
What skills is Brian Dennison known for?
Brian Dennison is listed with skills including Ethics And Compliance, Internal Investigations, Criminal Investigations, Surveillance, Interviewing, Writing, Defensive Tactics, and Firearms.
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