Here are some show excerpts from Agency principal Dave Liston's appearances on NPR's award-winning program, Sound Effect, at 88.5 KNKX FM Seattle (formerly KPLU) with Gabriel Spitzer.

Each clip runs under seven minutes and is a candid discussion about real-life investigative challenges.



The following are some comments from a few of our great clients:
"Available, hard-working, insightful, generous with his time, cheerful, truly enjoys his work, gets the job  done…self-starter…"

- Ed Harper, Harper Law PLLC, Kirkland, Washington

“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.”

- William Kessler, Commercial and Civil Litigation, Beresford Booth PLLC; Edmonds, Washington



- Iris, Equipment Recovery manager; Fortegra Financial




- Paul Frederick, Certified Backflows Operations Director
"Bravo! I just watched the (surveillance) clip, and I think that's going to go a long way for us. …a job well done!”

- Michael Sanders, attorney; Davies Pearson, P.C., Tacoma, WA
"We have used David Liston Investigative Services on many occasions since 2007. Dave Liston has always shown himself to be resourceful (most importantly!), hard working, insightful, and timely. There is no follow-up needed with him; he “stays on it” until he gets the job done.

We rest easy knowing that if the information is out there to be found, he will find it. And as an added benefit, Dave’s sense of humor and cheerful disposition make it a pleasure to work with him.”

- Sue Fuller, senior paralegal, Harper Law PLLC, Kirkland, WA
"When I needed someone to help me locate an individual who had been harassing me for more than two years, I turned to David. Even though the task was difficult, he NEVER gave up. He used every lead until he finally was able to get the exact location of this person. His studious actions allowed me to get into court and stop the harassment.

During the process I found David to be extremely reliable. He continually kept me informed of how the information was developing and reassured me that, in the end, we would succeed. And sure enough we did.
I now have peace back in my life."
Thank you!

- Jeanne D., Tacoma, WA.
"...I also wanted to thank you for your help this month. I remain impressed with the results you provided me. Thank you very much for everything you've done for me and your support of my situation. The time and effort you've invested is very much appreciated."

- -Jerry C., US Army, Lakewood, WA