Owner & Operator · Licensed in California and Texas

Investigations built on experience, integrity and sound judgment.

Buehler Investigative Services provides thorough public-safety background investigations and impartial workplace investigations for agencies, employers and legal professionals.

  • 30 yearsLaw-enforcement service
  • Since 1995Public-safety background investigations
  • Class 249FBI National Academy graduate
  • CaptainRetired command experience
Dan Buehler in professional attire
Dan Buehler Private Investigator & Qualified Manager California #50220 · Texas #A21966201

Objective findings

Documented methodology

Clear, defensible reporting

Investigative services

Experienced work for decisions that matter.

Every assignment is approached with discretion, careful documentation and an understanding of the standards governing public agencies and employers.

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Workplace & Administrative Investigations

Neutral fact-finding into employee complaints and alleged misconduct, handled with professionalism and respect for every participant.

  • Employee conduct and policy violations
  • Harassment and workplace complaints
  • Witness and subject interviews
  • Evidence-based findings and reports
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Investigative Review & Consulting

Practical guidance informed by decades of investigative, supervisory and command-level experience.

  • Case strategy and scope development
  • Interview planning
  • Report and process review
  • Public-sector investigative insight

Career experience

Three decades of progressive law-enforcement responsibility.

Dan Buehler retired as a Police Captain after a 30-year career with the City of El Monte Police Department. He advanced through every level of the organization—from Cadet and Police Officer through Corporal, Sergeant, Lieutenant and Captain.

That operational and command perspective now informs every Buehler Investigative Services assignment: identify the relevant facts, test the evidence, document the work and communicate conclusions clearly.

About Dan Buehler

Seasoned investigator. Steady professional.

Dan Buehler is the owner and operator of Buehler Investigative Services. He is licensed as a Private Investigator and Qualified Manager in both California and Texas.

Dan has conducted and supervised public-safety background investigations since 1995, building on investigative experience developed throughout his law-enforcement career.

His experience and specialized training as an Internal Affairs Lieutenant provided the investigative tools, sound judgment and procedural discipline he now brings to administrative workplace investigations.

Dan is a graduate of the FBI National Academy, Class 249, holds a Master’s Degree in Leadership and is a Certified EEO Investigator. His investigator training includes the California Peace Officer Standards and Training (POST) Background Investigators Course and updates, and training through the Association of Workplace Investigators.

Clients receive direct communication, disciplined fact-finding and reports designed to withstand careful review.

Discuss an assignment

Start with a confidential conversation.

Contact Dan Buehler directly to discuss the scope, timing and needs of your investigation.