Leo Gabau
Leo A. Gabau was a Phoenix-based physical scientist who specialized in magnetics and electromagnetic detection technology. He is primarily known in UFO literature as one of the alleged sources for the 1948 Aztec, New Mexico UFO crash retrieval story, and as the co-defendant with Silas Newton in a controversial 1952-1953 fraud trial that effectively discredited the Aztec case for decades.
| Role | Physical scientist specializing in magnetics; co-inventor of magnetic detection devices |
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Background and Expertise
Gabau was an accomplished scientist whose professional work centered on magnetic anomaly detection—technology used both for locating underground oil and gas deposits and, during World War II, for detecting submarines. He was one of the inventors or early developers of devices colloquially called "doodlebugs," electromagnetic sensing equipment designed to locate subsurface resources.
According to researcher William Steinman's investigations, Gabau may have worked at the Phoenix and Los Angeles divisions of the Air Research Corporation around 1946, and potentially consulted with Carl A. Highland's Highland Research and Exploration Company in Denver on magnetic detection equipment. Steinman theorized—though without conclusive documentary proof—that Gabau and Highland may have worked together on a US government research project in Antarctica in 1935, and later collaborated on adapting World War II anti-submarine magnetic aerial detection (MAD) technology for postwar oil and gas exploration.
Connection to the Aztec UFO Case
Gabau's name became permanently linked to the 1948 Aztec crash through Frank Scully's 1950 bestselling book Behind the Flying Saucers. In the book, Scully referenced a mysterious figure called "Dr. G"—described as a scientist (or group of scientists) with "more degrees than a thermometer" who provided firsthand information about a recovered flying disc near Aztec, New Mexico.
In 1952, San Francisco Chronicle writer JP Khan published a debunking article in which he identified Gabau as the sole person behind the "Dr. G" designation. This claim has been heavily disputed. Both Gabau himself and subsequent researchers have maintained that "Dr. G" was actually an amalgamation of up to eight scientists, and that Gabau was—at most—one member of that group, not the singular source. Gabau continuously denied being "Dr. G" in writing and under oath.
Steinman and other researchers theorized that Gabau may have been used as a conduit for information from more senior scientists who wished to remain anonymous, possibly including figures like Dr. Carl A. Highland or members of Vannevar Bush's wartime scientific networks.
The 1952-1953 Fraud Trial
On October 18, 1952, Gabau and Newton were arrested and charged with defrauding Denver businessman Herman Flater of $250,000 through the sale of interests in oil-detecting devices (the doodlebug). The charges included interstate transportation of stolen property and marketing "worthless machinery."
The trial, which ran from November 10 to December 29, 1953, was highly unusual and has been characterized by researchers as a targeted prosecution intended to suppress the Aztec story rather than pursue legitimate fraud:
- Dubious evidence: The prosecution presented a device purchased at a war surplus store for $4.45 as representative of Gabau's actual doodlebug, despite it being described only as "very similar." Expert witnesses testified based on this substitute device that it could not detect oil or gas.
- Satisfied investors: FBI investigators found that 32 of 33 investors in Newton and Gabau's ventures were pleased with their returns; Flater was the sole complainant, and he was actively receiving royalties from Newton's successful oil wells at the time of filing charges.
- JP Khan's involvement: Khan assisted the prosecution throughout the trial and had previously contacted J. Edgar Hoover and the FBI to build a case against Newton, suggesting coordination between media and law enforcement.
- Ignored defense evidence: Multiple witnesses testified that Gabau's devices had successfully located oil wells and water deposits, including testimony from ranch owner Horace Steele, who stated Gabau's machine identified 35 oil wells, one of which Steele sold for $1.75 million.
Gabau and Newton were found guilty on December 29, 1953, but the case evaporated—neither man was ever sentenced, and no fines were levied. Curiously, Newton agreed to pay $18,000 to cover court costs, as though the criminal prosecution had been a civil matter.
Many researchers, including Steinman and Scott and Suzanne Ramsay, argue the trial was retaliation for Newton's role in publicly disclosing the Aztec crash, with Gabau caught in the crossfire due to his business association with Newton and possible connection to the "Dr. G" network.
The Doodlebug and Magnetic Detection Technology
Gabau's doodlebug was not the pseudoscientific fraud it was portrayed as during the trial. Magnetic anomaly detection (MAD) devices were legitimate technologies adapted from wartime submarine detection programs. Companies like Geophysical Services Inc. (GSI)—which later became Texas Instruments—developed similar reflection seismograph and electromagnetic detection equipment for the oil industry before being recruited by Vannevar Bush's Office of Scientific Research and Development (OSRD) during World War II to build submarine-detecting systems.
Testimony during the trial confirmed that Gabau's devices had successfully located subsurface oil and water on multiple occasions. The prosecution's reliance on a $4.45 surplus-store substitute device—rather than Gabau's actual equipment—raises serious questions about the trial's legitimacy.
The Question of Dr. G
Whether Gabau was one of the "Dr. G" scientists remains unresolved. What is clear:
- Gabau repeatedly and consistently denied being the sole "Dr. G"
- JP Khan's identification of Gabau as the singular source has no supporting evidence
- Gabau's expertise in magnetic detection and his professional networks placed him in contact with scientists who would have been logical candidates for early UFO crash retrieval analysis
- Steinman theorized that Dr. Carl A. Highland, a geophysicist and alleged MJ-12 member, was the primary "Dr. G" source and potentially leaked information to both Newton and Gabau
If Gabau was indeed one member of a larger "Dr. G" network, his role may have been as a technical consultant on magnetic propulsion—consistent with multiple early accounts that described recovered UFO craft as operating via magnetic principles.
Later Years and Legacy
Gabau largely disappeared from public UFO discourse following the 1953 trial. The conviction—despite its lack of sentencing and the questionable evidence presented—succeeded in discrediting both Gabau and the Aztec case for decades.
It was not until the 1980s,with William Steinman's investigative work and the later research of Scott and Suzanne Ramsay, that Gabau's reputation began to be reassessed. Modern researchers view both Gabau and Newton as possible victims of an orchestrated disinformation and suppression campaign designed to bury the Aztec crash story and punish those who leaked details of early UFO crash retrievals.
Sources
Related Pages
- Silas Newton
- Carl A. Highland
- Frank Scully
- JP Khan
- Herman Flater
- 1948 Aztec UFO Crash
- Doodlebug
- Magnetic Anomaly Detection (MAD) & Doodlebugs
- Behind the Flying Saucers