David Liston Investigative Services | Liston and Associates

Surveillance and Asset Profile Experts.

Since 2007, this top-rated Tacoma P.I. agency has provided outstanding results to law firms and private clients.

What can we do for you?

DLIS specializes in the following areas:

Other services include

  • Contract Compliance Investigations

  • Accident and Evidence Photography

  • Extreme Skips - Asset Recovery Investigations

  • Court Records Research and Background Checks

  • Video Depositions and Interviews


    Recently, Dave and 88.5 KPLU's Sound Effect producer Gabriel Spitzer discussed some unusual real-life surveillance and locate cases. Click on the players below to hear those interviews. Each are less than 7 minutes long.

    Search Liston Investigative Services:

    "Available, hard-working, insightful, generous with his time, cheerful, truly enjoys his work, gets the job  done…self-starter…"

    -Ed Harper of Harper Law describes working with David Liston Investigative Services.

    “David Liston is first rate and charges reasonable fees... I have utilized his services many times in the last few years for judgment collection, with great success.”

    -Bill K.; Lawyer, Edmonds, WA

    (more testimonials and references here)

    Let's discuss how we can help you at (253) 212-0544, or please use the contact form to arrange a convenient time for Dave to call you.

    Email inquiries are welcome.

    Click here for your free consultation.

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    Complete professional reports from your Tacoma Investigator

    David Liston Investigative Services.

    "The investigator P.I.'s hire"

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