Detective Services

Dietz Associates, Inc., offers a wide array of investigative services to law firms, insurance companies, individuals, private organizations and corporations throughout the San Francisco Bay Area, and statewide.

Services include, but are not limited to, the following areas:

Statements / Declarations

  • Traffic Accidents
  • Personal Injury
  • Work Related Accidents
  • Civil/Criminal Cases
  • Written/Recorded
  • Video/Audio Declarations

Photo Documentation

  • Accident Scene
  • Vehicle Photos
  • Photo Enlargement
  • Photo Scanning
  • 35mm/Digital
    (High Resolution Capabilities)


  • Photo/Video/DVD/CD-Rom
  • Workmens’ Comp (AOE/COE)
  • Employer Theft
  • Insurance Fraud Investigations
  • Family Law

Subject Location

  • Claimants
  • Witnesses
  • Companies
  • Addresses (Home/Business)
  • Telephone Numbers

Litigation Support

  • Personal Injury Investigations
  • Civil Investigations
  • Criminal Investigations
  • Surveillance
  • Construction/Building Code Investigations
  • Witness Canvass & Interviews

Trial Preparation & Support

  • Witness Location
  • Tech Support
  • Court Research
  • Photo Enlargement Services
  • Witness Transportation
  • Evidence Handling & Storage

Background Checks/Research

  • Criminal/Civil
  • SSN Verification
  • Employer Verification
  • Credit Reports
  • Education Verification
  • Pre-Employment
  • Marriage/Divorce Records
  • Assets/Property
  • Bankruptcy/Liens
  • Workmens’ Comp Claims
  • Medical Records

Corporate Theft

  • Employment Verification
  • Interviews
  • Problem Employee Separation
  • Surveillance


Case Handling
Each case is reviewed immediately upon intake, and all relevant information is organized. We review the objectives for the case and create an action plan. All case documentation remains in our secure facilities – until needed.

We customize our programs and reports to your precise needs. Fast, clear, and easy-to-read reports are prepared in chronological order, then summarized for quick reference. Case updates are made after each pivotal discovery. You decide how long the case proceeds. Our programs will integrate with your process.

Evidence gathered during the investigation is clearly noted in your report, and then held at our facilities until it is requested or subpoenaed. A chain-of-evidence report tracks all of our files. Each of our professional investigators is ready to provide testimony, and client instructions are followed to the letter.