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Blackthorne investigation Services
Blackthorne Detective Agency provides private investigation services to the western Washington areas in both business and personal matters. We work with you to understand your needs and provide a custom investigative solution based on:
- Budget
- Timeframe
- Resources Needed
- Projected Deliverables
Contact us today for a free consultation. (206) 793-2126
Surveillance
Blackthorne investigators are all highly trained in military and law enforcement techniques for reconnaissance and surveillance operations. Our surveillance team utilizes the same equipment used by law enforcement and government agencies. We can provide results where others may fail without trespass or violation of privacy laws.
Missing person Locate & Skip Trace
- Witness locate
- Missing person
- Locate relatives
- Debt skipper
- Locate old friend or lost love
- Bail Bond fugitives
Background & Criminal History Check
- Criminal
- Civil
- Personal reasons
- Pre-employment
- Business
- Marriage
- Dating
- Baby-sitter
Process Service
- Subpoena
- Summons
- Restraining order
- Other legal document
Undercover Investigations
- Employee misconduct
- Work place violence
- Loss Prevention
- Personal
- Civil
- Criminal
Child Custody/Divorce
Let us help you prove that you’re a better parent, discover assets. Are the kids in a safe healthy environment? Investigative techniques & usage of surveillance to gather winning information.
- Asset Discovery
- Surveillance
- Background checks
- Child welfare investigations
Cheating Spouse Investigation
If you suspect your spouse is being unfaithful we can help. We will work with you to find your exact concerns and provide the information you need to know. Our infidelity investigations are not simply surveillance. We provide a full investigation with discretion and confidentiality to ensure your spouse is never aware we were hired.

