Blue Line Investigations and Security Services Logo

Tim Gulden, Blue Line Investigations and Security Services LLC

Blue Line Investigations and Security Services (BLISS) is a full service investigative and security service. We provide blue line services by utilizing only current or former law enforcement professionals. Contact us today for all of your investigative and security needs!



971 Cook Ave E
St. Paul, MN 55106

Business Phone


Mobile Phone



Business Hours

Available anytime day or night.


Background Investigations, Bodyguard / Executive Protection, Construction Sites, Corporate Investigations, Covert Video, Criminal Investigations, Criminal Investigations / Defense, Defense, Domestic, Dram Shop / Liquor Liability, Drunk Driving Defense, Elder Abuse Investigations, Executive Protection, Guard Service, Insurance, Personal Injury, Photography, Probate, Process Service, Public Interest Investigations, Public Record Searches, Surveillance, Trial Preparation, Workers Compensation, Workplace Investigations

Coverage Area

Minnesota Private Investigator License: 2190

Minnesota Protective Agent License: 2189

Counties Covered: Anoka, Chisago, Dakota, Hennepin, Ramsey, Scott, Washington


Blue Line Investigations and Security Services was founded after a successful 30 year career in law enforcement. Please see our website for a list of our services and contact information.

MAPI sponsors have opportunities to meet with our members at MAPI Events, and to provide materials and information to them about their business.

International Intelligence Network
Atlas Investigations
The National Council of Investigation and Security Services
Carney Forensics
Tracers Information Specialists, Inc.
PI Magazine
BRB Publications
IRB Search
El Dorado Insurance Agency, Inc.
Florida Association of Private Investigators, Inc.
Midwest Questioned Documents
Kelmar Global
Assured Polygraph LLC
National Investigative Training Academy, Inc. (NITA)
Computer Forensics Services, red Computer and logo, black Forensic Services
360 Security Services blue 360, black Security Services and blue and gray triple circle logo
Front Line Consultants
Flashlight NOW
Associates in Forensic Investigations LLC
Glen Bass Investigations
State-Wide Protective Agency
Crescent Investigative Services
Authentic Investigations
Integrous Risk Solutions
Edge Protective Services
ASIA Security
OREP Insurance Services
Spy Shop Round Rock
ational Association of Legal Investigators