# The Long Island Serial Killer Archives:  Rex Heuermann Challenges The Buccal Swab Request

Page: https://stenobird.com/podcast/the-moscow-murders-and-more-6558377/the-long-island-serial-killer-archives-rex-heuermann-challenges-the-buccal-swab-request
Text version: https://stenobird.com/podcast/the-moscow-murders-and-more-6558377/the-long-island-serial-killer-archives-rex-heuermann-challenges-the-buccal-swab-request.md
Podcast: [The Moscow Murders and More](https://stenobird.com/podcast/the-moscow-murders-and-more-6558377)
Published: 2026-05-09T00:30:02+00:00
Episode link: https://www.spreaker.com/episode/the-long-island-serial-killer-archives-rex-heuermann-challenges-the-buccal-swab-request--71876818
Audio file: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/71876818/rexchallengedna.mp3
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Duration seconds: 683

## Resource

A buccal swab, also known as a cheek swab or oral swab, is a non-invasive and relatively simple method used to collect a DNA sample from the inside of a person's cheek. This method is often preferred over more invasive techniques like drawing blood, as it is painless, quick, and requires minimal equipment.Here's a detailed summary of the buccal swab procedure and its significance:Procedure: Preparation: The person being sampled is asked to rinse their mouth with water to remove any debris that might interfere with the collection process. Swab Collection: A sterile cotton swab attached to a plastic or wooden stick is gently rubbed against the inside of the person's cheek. The swab collects cells from the inner lining of the cheek, known as the buccal mucosa. Repeat: Typically, several swabs are taken from both cheeks to ensure an adequate DNA sample. This redundancy helps ensure accuracy in case one swab doesn't yield enough DNA. Significance and Applications: The collected DNA from buccal swabs can be used for various purposes: Genetic Testing: Buccal swabs are commonly used for genetic testing, which can provide valuable information about an individual's genetic makeup, potential health risks, and ancestry. This includes tests for conditions like genetic disorders, carrier status for certain diseases, and predispositions to certain health conditions. Forensic Analysis: In criminal investigations, buccal swabs can be collected from suspects, victims, or crime scenes. DNA profiling from these samples can help establish or exclude potential connections between individuals and crime evidence. Paternity and Relationship Testing: Buccal swabs are used to determine biological relationships, such as paternity, maternity, and sibling relationships. Comparing the DNA profiles o…

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