Within Missing Measurements
What Betty Cash's Coat Might Have Revealed
Cash's coat was unusually important because it reportedly touched the hot door, yet no public chain of custody or laboratory result survives for it.
On this page
- Why the coat linked the heat and contamination claims
- How clothing surveys and laboratory tests would have worked
- What the missing chain of custody prevents investigators from proving
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Introduction
Within the Cash–Landrum incident, Betty Cash’s coat occupies a uniquely important place because it was reportedly used to open a car door that had become too hot to touch with a bare hand. If that account is accurate, the garment was the only publicly identified item said to have made deliberate, direct contact with a surface allegedly heated by the unidentified object. That made the coat potentially valuable for investigating two separate claims: whether the reported heat left measurable physical effects, and whether any radioactive or other hazardous material had been transferred to the fabric. Yet no publicly available record shows that the coat was promptly preserved, documented under a chain of custody, or subjected to laboratory analysis. As a result, one of the most promising pieces of physical evidence in the case effectively disappeared from the evidential record.[Cufon]cufon.orgBergstrom AFB Interview of Betty Cash, Vickie & Colby Landrum, Part 1 of 2August 17, 1981…
Why the coat linked the heat and contamination claims
According to Betty Cash’s contemporaneous account, she could not grasp the car door with her bare hand because it was painfully hot. Instead, she wrapped part of her leather coat around the handle to pull the door open before re-entering the vehicle. The detail appears repeatedly in early interviews and later retellings, making the coat more than an ordinary personal possession—it became an alleged contact surface between the witness and the claimed source of extreme heat.[Cufon]cufon.orgBergstrom AFB Interview of Betty Cash, Vickie & Colby Landrum, Part 1 of 2August 17, 1981…
If investigators had recovered the garment immediately, it could have addressed several independent questions:
- Whether the leather showed scorching, melting, shrinkage or thermal degradation consistent with unusually high temperatures.
- Whether microscopic residues had transferred from the vehicle’s door handle.
- Whether loose radioactive particles, if any had been present, adhered to the fabric.
- Whether contamination was concentrated only where the coat contacted the handle or was distributed more broadly across the garment.
Importantly, each of these questions tests a different aspect of the witnesses’ account. Thermal damage alone would not demonstrate radiation exposure, while radioactive contamination would not by itself prove that the unidentified object caused it. Nevertheless, together they could have helped distinguish between ordinary heat, unusual environmental contamination and simple witness recollection.
How clothing surveys and laboratory tests would have worked
Modern radiological response guidance treats clothing as one of the first items to evaluate because fabric can retain removable contamination after exposure to radioactive dust, droplets or debris. Emergency procedures call for contaminated clothing to be removed carefully, isolated in sealed containers and labelled so that later laboratory work can determine both the amount and location of any contamination. Removing clothing also prevents contamination from spreading and may eliminate a large proportion of external radioactive material from an affected person.[CDC]cdc.govself decontaminateHow to Self-Decontaminate after a Radiation Emergency | Radiation Emergencies | CDCApril 15, 2024…
Had Cash’s coat been preserved promptly, investigators could have performed several complementary examinations.
Initial radiation survey
The first step would have been a systematic scan with calibrated radiation survey instruments to determine whether any areas of the garment produced readings above normal background. Surveyors would normally map elevated readings rather than simply record a single overall value.[CDC]cdc.govUse of Radiation Detection, Measuring, and Imaging Instruments | Radiation Emergencies | CDCApril 27, 2024…
Wipe testing
If elevated readings were found, technicians could perform wipe tests to determine whether radioactive material was removable from the leather surface or permanently fixed within it. This distinction matters because removable contamination suggests deposited material, whereas fixed contamination may indicate a different history or mechanism.
Gamma spectroscopy
If measurable radioactivity were present, laboratory gamma spectroscopy could identify characteristic energy peaks associated with specific radionuclides rather than merely confirming that radiation existed. Identifying an isotope is often far more informative than recording an elevated count rate because it helps distinguish naturally occurring materials from industrial or medical sources.[CDC]cdc.govUse of Radiation Detection, Measuring, and Imaging Instruments | Radiation Emergencies | CDCApril 27, 2024…
Materials examination
Even if no radioactivity were detected, forensic examination of the leather itself could have looked for:
- heat-induced cracking or shrinkage;
- chemical changes caused by intense heating;
- embedded particles;
- transferred residues from painted metal or other contacted surfaces.
These analyses would not have resolved the entire case but could have independently tested parts of the witness narrative.
Why timing mattered
The evidential value of clothing declines rapidly once it returns to ordinary use.
Loose contamination can fall away during normal movement, be transferred to other objects or be removed during handling, storage or cleaning. Heat-related residues may also degrade over time through wear, sunlight and environmental exposure. For this reason, radiation emergency protocols emphasise preserving clothing immediately after an incident rather than days or weeks later.[CDC]cdc.govself decontaminateHow to Self-Decontaminate after a Radiation Emergency | Radiation Emergencies | CDCApril 15, 2024…
The distinction between exposure and contamination is especially important here. A person may receive a substantial external radiation dose without carrying any radioactive material afterwards. Conversely, contaminated clothing can retain radioactive particles even if the wearer’s radiation dose was comparatively low. Consequently, a negative clothing result would not automatically rule out every form of radiation exposure, but a positive result—properly documented—would have been highly significant evidence requiring further investigation.[CDC]cdc.govWhat Causes Contamination versus Exposure | Radiation Emergencies | CDCWhat Causes Contamination versus Exposure | Radiation Emergencies | CDC…
What the missing chain of custody prevents investigators from proving
The greatest limitation is not simply the absence of laboratory results. It is the absence of documented evidence showing what happened to the coat after the incident.
A complete chain of custody would normally identify:
- when the garment was collected;
- who handled it;
- how it was packaged;
- whether contamination controls prevented cross-contamination;
- which laboratory examined it;
- what instruments were used;
- the calibration records;
- the analytical results.
No publicly available documentation establishes that this process occurred for Betty Cash’s coat.
Without that documentation, later investigators cannot determine whether:
- the coat was never tested;
- it was tested but produced negative findings that were never publicly released;
- it was examined only informally;
- it was discarded before meaningful analysis became possible.
These possibilities remain distinct, but the surviving public record does not allow them to be distinguished confidently.
What the missing coat means for the wider evidence
Among the physical items associated with the Cash–Landrum incident, the coat stands out because it allegedly connected the witnesses directly to the claimed heat source. Unlike memories, sketches or later testimony, it was a tangible object that could, in principle, have been independently examined.
Its absence does not prove that radioactive contamination existed, nor does it disprove the witnesses’ account. Instead, it represents a lost opportunity. Had the garment been preserved under recognised forensic and radiological procedures, investigators might have obtained objective evidence bearing on the claims of intense heat, possible contamination, or both. Because that opportunity passed without a documented chain of custody or publicly available laboratory findings, the coat remains one of the clearest examples of how missing physical evidence continues to limit any scientific assessment of the Cash–Landrum incident.
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Endnotes
1.
Source: cufon.org
Link:https://www.cufon.org/cufon/cashlani.htm
Source snippet
Bergstrom AFB Interview of Betty Cash, Vickie & [Colby Landrum]({{ 'colby-landrum/' | relative_url }}), Part 1 of 2August 17, 1981...
Published: August 17, 1981
2.
Source: cdc.gov
Title: self decontaminate
Link:https://www.cdc.gov/radiation-emergencies/prevention/self-decontaminate.html
Source snippet
How to Self-Decontaminate after a Radiation Emergency | Radiation Emergencies | CDCApril 15, 2024...
Published: April 15, 2024
3.
Source: cdc.gov
Title: What Causes Contamination versus Exposure | Radiation Emergencies | CDC
Link:https://www.cdc.gov/radiation-emergencies/causes/index.html
Source snippet
What Causes Contamination versus Exposure | Radiation Emergencies | CDC...
4.
Source: cdc.gov
Link:https://www.cdc.gov/radiation-emergencies/media/pdfs/2024/04/population-monitoring-guide.pdf
Source snippet
Population Monitoring in Radiation Emergencies: A Guide for State and Local Public Health Planners...
5.
Source: cdc.gov
Link:https://www.cdc.gov/radiation-emergencies/hcp/screening/index.html
Source snippet
Use of Radiation Detection, Measuring, and Imaging Instruments | Radiation Emergencies | CDCApril 27, 2024...
Published: April 27, 2024
6.
Source: cdc.gov
Title: information for clinicians
Link:https://www.cdc.gov/radiation-emergencies/hcp/clinical-guidance/information-for-clinicians.html
7.
Source: cdc.gov
Title: medical examiner
Link:https://www.cdc.gov/radiation-emergencies/hcp/clinical-guidance/medical-examiner.html
8.
Source: cdc.gov
Title: immediate actions
Link:https://www.cdc.gov/radiation-emergencies/hcp/nuclear-detonations/immediate-actions.html
9.
Source: cdc.gov
Title: radioactive isotopes
Link:https://www.cdc.gov/radiation-health/about/radioactive-isotopes.html
10.
Source: cdc.gov
Link:https://www.cdc.gov/radiation-health/safety/decontamination.html
11.
Source: archive.cdc.gov
Link:https://archive.cdc.gov/www_cdc_gov/nceh/radiation/emergencies/screeningvideos/script1.htm
12.
Source: archive.cdc.gov
Link:https://archive.cdc.gov/www_cdc_gov/nceh/radiation/emergencies/screeningvideos/script4.htm
13.
Source: archive.cdc.gov
Link:https://archive.cdc.gov/www_cdc_gov/nceh/radiation/emergencies/clinicians/evaluation/supportdocs.htm
14.
Source: youtube.com
Title: Did Aliens Cause This Family Health Problems? | Cash-Landrum Incident
Link:https://www.youtube.com/watch?v=cFz7hXTJDkU
Source snippet
The Cash - Landrum UFO Encounter | Dark Mysteries...
15.
Source: youtube.com
Title: The Cash
Link:https://www.youtube.com/watch?v=t6sV0LIy7GI
16.
Source: Wikipedia
Title: Cash–Landrum incident
Link:https://en.wikipedia.org/wiki/Cash%E2%80%93Landrum_incident
17.
Source: wikidisc.org
Title: Cash–Landrum incident | Wiki Disc
Link:https://www.wikidisc.org/wiki/Cash%E2%80%93Landrum_incident
Source snippet
Cash–Landrum incident | WikiDiscJuly 1, 2026 — INVESTIGATION[EDIT | EDIT SOURCE] INITIAL REPORTING AND MEDICAL RESPONSE[EDIT | EDIT SOURC...
Published: July 1, 2026
Additional References
18.
Source: thisunexplaineduniverse.com
Link:https://www.thisunexplaineduniverse.com/articles/cash-landrum-incident
Source snippet
July 28, 2026 — WHAT YOU'LL LEARN * •A Quiet Drive Home on FM 1485 * •The Thing Above the Road * •A Swarm of Helicopters * •The Sickness...
Published: July 28, 2026
19.
Source: unexplainedsightings.com
Title: Cash-Landrum Incident: UFO With Real Injuries | Unexplained Sightings
Link:https://unexplainedsightings.com/cash-landrum-incident/
Source snippet
May 11, 2026 — THE CASH-LANDRUM INCIDENT: A UFO ENCOUNTER THAT CAUSED REAL INJURIES by [email protected] | May 11, 2026 | UFO & UAP Incid...
Published: May 11, 2026
20.
Source: youtube.com
Title: Terrifying Texas UFO Encounter
Link:https://www.youtube.com/watch?v=RVeOy9W8EUE
Source snippet
Did Aliens Cause This Family Health Problems? | Cash-Landrum Incident...
21.
Source: nrc.gov
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Source: nist.gov
Title: june 9 2008 release plutonium nist boulder laboratory and nists environmental
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23.
Source: nist.gov
Title: medical tests indicate internal contamination due june 9 plutonium incident
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24.
Source: tvi.show
Link:https://www.tvi.show/legend-hunters/the-cash-landrum-incident
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Source: nist.gov
Title: low level plutonium sample involved nist boulder lab incident
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26.
Source: youtube.com
Title: UFO Hunters: Life-Altering Alien Encounter (S2, E8) | Full Episode | History
Link:https://www.youtube.com/watch?v=UPkW9XBX0fU
Source snippet
The Cash-Landrum UFO Mystery...
27.
Source: youtube.com
Title: The Cash-Landrum UFO Mystery
Link:https://www.youtube.com/watch?v=P2HsOUTzyWA
Source snippet
Terrifying Texas UFO Encounter - The Cash Landrum Incident...