What is considered, “state of the art” today, becomes “old school” tomorrow. That’s why Gary Glanz & Associates strives to stay on the ever changing, cutting edge of gee- whiz technology and investigative resources. While we can’t reveal our secret gadgetry, without upsetting agent Q, we can show you some of the once cutting edge tools, used by Gary Glanz, to help solve some of Oklahoma’s most interesting capers, cons and conundrums.

Vehicle Tracking

Before the days of pinpoint accurate, lithium-ion powered GPS trackers, that can be viewed from your tablet sized smart phone, there were Bumper Beepers. Using a Bumper Beeper to run a surveillance was a lot like playing a two person game of Marco Polo in an overcrowded, public swimming pool.

In this polaroid photo, Gary Glanz demonstrates the installation of, a now retired, vehicle tracking wonder. This magical device worked by paring a set of nine volt batteries with a simple radio transmitter, and a magnetic mount. Once powered on, a feat accomplished by flipping the switch, and enjoying the satisfying “click” that only a mechanical ON/OFF switch can give, the device would begin broadcasting a steady radio “beep”. This “beep”, could be picked up by a special radio in the investigators vehicle, and based on whether the sounds was getting louder or softer, the investigator could determine if the vehicle was getting closer or farther away.

Video & Photography

Those who have undergone a Colonoscopy can certainly appreciate the miniaturization of video camera technology. While it’s true that cameras today have gotten so diminutive that they pose a choking hazard to small children, things haven't always been that way. In this photo Gary Glanz is seen using a hefty telephoto lens, mounted to a 35mm film camera; a combination which weights only slightly less than a runway model.

Before the days of high definition pinhole cameras and thermal imaging, Gary Glanz got the shot by hiding 35mm cameras behind one-way mirrors, or poking motorized 17mm video cameras out of air conditioner vents. Of course all of this was done before the days of Instagram filters, so the big magic happened in the dark room, where the photographs and video came out with that natural, sepia toned, soft vignette, that people on Instagram fawn over.


Since beginning his career as a private investigator in 1967, Gary Glanz has embraced the latest in technological advances to help him get the job done. Beginning with reel-to-reel tape recorders, wind-up film cameras and bumper beepers, he has always invested in the latest state-of-the-art equipment.

Today, “state-of-the-art” means GPS tracking systems, digital video and audio recorders, high-resolution photography and complicated computer software that allows him to conduct surveillance around the country in real time from his office. But having the right tools is only part of the job – Glanz also has the know-how to make that equipment work for you.

About The Firm

The Wall Street Journal calls him “The Super Sleuth” —and with good reason. For more than 40 years, Tulsa private investigator Gary Glanz has been solving major crimes, locating missing people, recovering tens of millions of dollars in cash and other valuable materials and securing priceless art collections—all with a flair, and a sense of professionalism and discretion that have earned him an international reputation. Originally making a name for himself as one of the youngest detectives in the history of the Tulsa Police Department, where he received numerous awards and citations, Glanz left the police department in 1967 to establish his own private investigative firm. Gary G...


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