Why Attorneys & Businesses Choose Us
Licensed California PI #189588
Clear, professional reports ready for court
Fast turnaround and confidential handling
Flexible fee structure (flat rate, hourly, or retainer)
Experience supporting law firms, businesses, and private clients
TRUELINE
INVESTIGATIONS
We provide thorough, court-ready reports that help attorneys strengthen their cases, businesses protect their interests, and private clients find peace of mind.
TRUELINE
INVESTIGATIONS
Our Services
Surveillance
Discreet monitoring for insurance, infidelity, or fraud cases
Background Investigations
Detailed checks on parties, witnesses, employees, or business partners
Personal Injury Investigations
Gathering evidence and information related to personal injury cases. Our team members are experts in visiting accident sites to canvass for witnesses, photograph and measure defects and retrieve video.
Criminal Investigations
I work diligently to ensure you have everything available to support your best defense.
Missing Persons & Skip Tracing Services
When someone you love is missing, Trueline Investigations provides dedicated attention and investigative support to help locate them, supplementing law enforcement efforts when staffing or resources are limited.
About
James Butler
State of California Licensed Private Investigator and Qualified Manager
James Butler is a retired Police Officer with more than 30 years of combined experience in law enforcement, security operations, and private investigations. James brings unmatched expertise and professionalism to every case. James is a Licensed California Private Investigator (CA PI #189588) and the founder of Trueline Investigations Inc., based in Dublin, California.
Before launching Trueline Investigations in 2023, James served as a Deputy Sheriff with the Contra Costa County Sheriff’s Office and a Police Officer in Menlo Park and East Palo Alto, where he developed advanced skills in criminal investigations, surveillance, and evidence handling. His career also includes specialized assignments in Homicide, Sexual-assault, and Juvenile investigations, SWAT operations, and Background Investigations for major law-enforcement agencies.
In the private sector, James has provided executive protection for Fortune 500 companies, conducted complex pre-employment background checks, and managed high-risk security details. His clients benefit from a meticulous, discreet approach that ensures reliable results and comprehensive reporting.
James is an active member of the California Association of Licensed Investigators (CALI) and the California Association of Law Enforcement Background Investigators (CALEBI), reflecting his commitment to professional standards and continuing education.
Whether conducting personal injury investigations, background investigations, surveillance, missing persons & skip tracing servies, or criminal investigations, James Butler and Trueline Investigations deliver confidential, ethical, and results-driven investigative services to attorneys, businesses, and private individuals across California.
Professional
Discreet
Reliable
Contact Us
11501 Dublin Blvd, Suite 200
Dublin, CA 94568