GTI has trained personnel from the following agencies:

Federal Agencies

• United States Transportation Security Administration
• United States Department of Homeland Security Federal Protective Services
• United States Air Force Office Of Special Investigations
• United States Secret Service
• United States Air Force Reserves ASOS
• United States Air Force 366th Security Police
• United States Veterans Affairs Police
• United States 160th U.S. Army reserve
• United States Army CID
• US Border Patrol Laredo (TX)
• 173rd Fighter Wing Security Forces United States Air Force
• 366th Security Forces United States Air Force
• United States Department of Homeland Security (Saudi Arabia)
• Alcohol, Tobacco, Firearms
• Fort Richardson HHB 2377 (AK)
• Fort Stewart (GA)
• Guam Customs
• Japanese Defense Force
• Kennedy Space Center NASA Naval Reserve
• Marine Corps Logistics Base Barstow
• Ministry of Defense Police, United Kingdom
• Naval Surface Warfare Center
• Ottawa Police Service
• Presidio of Monterey Police
• Saipan Mariana Islands Police

Cities

• Abbeville (SC)
• Anaheim (CA)
• Anderson (SC)
• Atlanta (GA)
• Barnwell (SC)
• Bennetsville (SC)
• Bluffton (SC)
• Boise Airport Police
• Boise City Police Department
• Bonners Ferry Police Department
• Brea (CA)
• Buhl Police Department
• Caldwell Police Department
• Camden (DE)
• Castle Rock Police Department
• Cayce (SC)
• Coeur d'Alene Police Department
• Columbia (SC)
• Costa Mesa (CA)
• Chandler Police (AZ)
• Chubbuck Police Department
• Clemson (SC)
• Clinton DPS (SC)
• Comet Drug Task Force (Michigan)
• Delta Police Department (Canada)
• Denmark (SC)
• Dover Police Department (Delaware)
• Elgin (SC)
• Eugene Police Department (Oregon)
• Exeter Police Department (New Hampshire)
• Farmington Police Department (New Mexico)
• Florence (SC)
• Fort Smith Police (AR)
• Fullerton (CA)
• Garden City Police Department
• Germantown Police Department (OH)
• Gila River Police (AZ)
• Gilbert Police Department (Arizona)
• Hanahan (SC)
• Hardeeville (SC)
• Hot Springs Police Department (Arkansas)
• Huntington Beach (CA)
• Idaho Falls Police Department
• Inkom Police Department
• Irvine (CA)
• Jacksboro (TN)
• Jefferson City Police Department (Missouri)
• Jerome Police Department
• Jonesville (SC)
• Kenmore Police (Washington State)
• Kelso Police (Washington)
• Kingstree (SC)
• Klamath Falls Police Department (Oregon)
• Knoxville Police (TN)
• LaFollette (TN)
• Laguna Beach (CA)
• Lake Havasu (AZ)
• Las Cruces Police Department (New Mexico)
• Las Vegas Metropolitan Police Department (Nevada)
• London City Police Department
• Liberty (SC)
• Livingston Police Department (Montana)
• Lyman (SC)
• Macon (GA)
• McCall Police Department
• Medical Center of Louisiana New Orleans Police (LA)
• Meridian Police Department
• Mesquite Police Department (Nevada)
• Moscow Police Department
• Mounds View Police (MN)
• Mount Pleasant (SC)
• Mountain Home Police Department
• Mountain Village Police (Colorado)
• Mullins (SC)
• N. Charleston (SC)
• Nampa Fire Department
• Nampa Police Department
• Naples Police (Utah)
• Newport Beach (CA)
• Ocean View (DE)
• Omaha Nation Tribe (Nebraska)
• Orange (CA)
• Payette Department of Public Safety
• Payette Police
• Parker (AZ)
• Parma Police Department
• Petersburg Police Department (Florida)
• Phoenix Police (AZ)
• Placentia (CA)
• Pocatello Police Department
• Port Royal (SC)
• Post Falls Police Department
• Preston Police Department
• Quartzsite (AZ)
• Rathdrum Police Department
• River Falls Police (MN)
• Rexburg Police Department
• Rock Hill Police (South Carolina)
• Rome (GA)
• Roswell Police Department (New Mexico)
• Roy Police Department (Utah)
• Rigby Police Department
• Rupert Police Department
• Saint Maries Police Department
• Salmon Police Department (Idaho)
• Santa Ana (CA)
• Santa Fe Police Department (New Mexico)
• Sandpoint Police Department
• Savannah / Chatham Metro (GA)
• Scottsdale Police (AZ)
• Shelley Police (ID)
• Fruitland Police Department
• Shoshone Police Department
• Sitka Police Department
• Snohomish Police Department (Washington)
• Spirit Lake Police Department
• Sumter (SC)
• Sun Valley Police Department
• Saskatchewan Police Department (Canada)
• Selah Police Department (Washington)
• Sevierville Police (TN)
• Surprise (AZ)
• Tempe Police (AZ)
• Thermopolis Police Department (Wyoming)
• Traveler's Rest (SC)
• Tucson (AZ)
• Twin Falls City Police Department
• Union DPS (SC)
• Vancouver Police Department (Canada)
• Walla Walla Police Department (Washington)
• Watertown (SD)
• Weiser Police Department
• West Covina (CA)
• Whitefish Police (Montana)
• Wilder Police Department
• Wilmington (DE)
• Windom Police (MN)
• Wilmington Police Department (Delaware)
• Woodinville Police (Washington State)
• York (SC)

State Agencies

• 10th CST Washington National Guard
• 101st CST Idaho National Guard
• 196th IN BDE Hawaii National Guard
• Alaska National Guard
• Alaska State Police
• Arizona Department of Public Safety
• Connecticut Army National Guard
• Delaware Capitol Police
• Delaware State Police
• Delaware State University
• Duke Energy Police
• Hawaii DPS
• Idaho Army National Guard
• Idaho Bureau of Land Management
• Idaho Department of Corrections
• Idaho National Laboratory Police
• Idaho State Police Department
• Idaho State Police POST
• Idaho Department of Fish and Game
• Louisiana DHS SWAT
• Mineral Area Drug Task Force
• Minnesota Department of Natural Resources
• Nevada Department of Public Safety
• New Mexico State Police
• Oregon State Corrections (SRCI)
• South Carolina Law Enforcement Division (SLED)
• State of Idaho Department of Health and Welfare
• State of Idaho Military Division - Idaho Army National Guard
• Tennessee Bomb and Arson
• US ARMY Fort Bragg
• University of Delaware
• University of Tennessee Police
• Virgin Islands Department of Public Safety

County Agencies

• Abbeville County (SC)
• Ada County Sheriff’s Office
• Ada County Marshal
• Aiken County Sheriff (SC)
• Anderson County (SC)
• Barnwell County (SC)
• Beaufort County Sheriff (SC)
• Benewah County Sheriff’s Office
• Berkeley County (SC)
• Bernalillo County Sheriff's Office (New Mexico)
• Bingham County Sheriff’s Office
• Boise County Sheriff’s Office
• Bonner County Juvenile Probation
• Bonner County Sheriff’s Office
• Bonneville County Sheriff’s Office
• Campbell County (TN)
• Caribou County Sheriff’s Office
• Canyon County Sheriff’s Office
• Carson City Sheriff’s Office (Nevada)
• Carver County Sheriff (MN)
• Cassia County Sheriff’s Office
• Charleston County Sheriff (South Carolina)
• Chelan County Sheriff’s Office (Washington)
• Chisago County Sheriff (MN)
• Clarendon County (SC)
• Clayton County (GA)
• Cobb County (GA)
• Columbia County (SC)
• Cottonwood County (AZ)
• Cottonwood County Sheriff (MN)
• Clearwater County Sheriff’s Office
• Covington County Sheriff’s Office (Mississippi)
• Custer County Sheriff’s Office
• Dekalb County (GA)
• Dorchester County (SC)
• Elko County Sheriff’s Office
• Elmore County
• Fairfield County Sheriff (SC)
• Franklin County Sheriff’s Office
• Freemont County Sheriff’s Office
• Gallatin County Sheriff’s Office (Montana)
• Georgetown County (SC)
• Germantown Police Department (Tennessee)
• Greenville County Sheriff’s Office (South Carolina)
• Greenwood County (SC)
• Gooding County Sheriff’s Department
• Hall County (GA)
• Horry County Sheriff’s Office (South Carolina)
• Hot Springs County Sheriff’s Office (Wyoming)
• Jackson County Sheriff’s Office (Oregon)
• Jackson County Drug Task Force (Oregon)
• Jasper County (SC)
• Kershaw County Sheriff (SC)
• King County Sheriff’s Office (Washington State)
• Knox County (TN)
• Kootenai County Fire and Rescue Department
• Kootenai County Juvenile Probation
• Kootenai County Sheriff’s Office
• La Paz County (AZ)
• Lake County Sheriff’s Department
• Latah County Sheriff’s Department
• Laurens County (SC)
• Layton City Police Department
• Lemhi County Sheriff’s Office
• Lewis County Sheriff’s Office
• Lexington County Sheriff (SC)
• Linn County Sheriff’s Office (Oregon)
• Madison County Sheriff’s Office
• Malhuer County Sheriff’s Department (Oregon)
• Maricopa County (AZ)
• Marion County (SC)
• McHenry County (IL)
• Monroe County Sheriff (TN)
• Monterey County Sheriff’s Office (California)
• Montezuma County Sheriff’s Office
• Multnomah County Sheriff (Oregon)
• Municipality of Germantown Ohio Police
• Muscogee County (GA)
• Oconee County (SC)
• Orangeburg County (SC)
• Owyhee County Sheriff’s Office
• Payette County Sheriff’s Office
• Pickens County (SC)
• Pinal County (AZ)
• Plaquemines Parish Sheriff (LA)
• Richland County Sheriff’s Office (South Carolina)
• Richmond County (GA)
• San Juan County Sheriff’s Office (New Mexico)
• San Miguel County Sheriff’s Office (Colorado)
• Scott County (TN)
• Shoshone County Sheriff’s Office
• Snohomish County, (Washington)
• Spartanburg County (SC)
• Sumter County Sheriff (FL)
• Teton County Sheriff’s Office
• Twin Falls County Sheriff’s Office
• Union County (SC)
• Valley County
• Washington County Sheriff’s Office
• Wise County Sheriff’s Office
• Waseca County Sheriff (MN)
• Winona County Sheriff (MN)
• Wyandotte County (KS)
• Yakima County Sheriff’s Office (Washington)
• York County (SC)

Infrastructure

• Coeur d'Alene School District
• Cole Valley Christian School
• Corrections Corporation of America
• Franklin Elementary School
• Grace High School
• Idaho State University
• Keolsh Elementary School
• Kuna High School
• Lake Hazel Middle School
• Lakeland School District
• Madison County School District
• Micron Technologies
• Mountain Home High School
• Nampa High School
• Nampa School District
• Orofino School District
• Post Falls Middle School
• Pocatello School District
• Saint Alphonsus Regional Medical Center
• Saint Lukes Regional Medical Center
• Van Buren Elementary School

Tribal

• Colorado River Indian Tribes (AZ)
• Hualapai Nation (AZ)
• Shoshone/Bannock Tribal Police
• Tohono O’odham Police (AZ)