Investigative genetic genealogy often involves 'trash pulls' to obtain DNA samples when direct collection isn't feasible. This DNA, even from discarded items, can be compared to crime scene evidence to identify suspects or their relatives. The process is legally permissible in most states as trash left on the curb is considered abandoned. In the Koberger case, DNA from his father's trash was compared to the knife sheath button, establishing a high probability match.

Impact: High. This technique provides a critical pathway to suspects who might otherwise remain unidentified, especially when traditional surveillance or evidence collection is challenging. It highlights the power of forensic genealogy in modern investigations.

In the source video, this keypoint occurs from 00:49:23 to 00:52:35.

Sources in support: CeCe Moore (Genetic Genealogist)