Obtaining DNA samples through genealogy information can limit the opportunity for a court challenge for law enforcement. This method is seen as legal by the courts and can be more reliable than other search warrant methods.
Law enforcement officials are cautious of using evidence from public websites for legal proceedings due to the possibility of legal challenges. However, if the rules for obtaining the evidence are followed correctly, such challenges could be minimal.
The legality of obtaining DNA samples through genealogy websites and trash pulls is debated. While obtaining a DNA sample through these methods is legal, the use of this information in court cases may be subject to challenges.