Exactly, while DNA may identify an individual with high precision, we have to trust that that DNA was actually associated with the location or event. Consider

Exactly, while DNA may identify an individual with high precision, we have to trust that that DNA was actually associated with the location or event. Consider a public bathroom: how much DNA is at that location? How much is relevant to the event? Consider a corrupt lab tech: The DNA at the event might be reported as DNA from their database. Does a defense attorney get to see the untainted sample? Consider a corrupt/hacked DNA database: The database might report that the DNA belongs to one individual when it actually doesn't. Does a defense attorney even get to see the source code? In these scenarios, the link to any individual is either of little consequence, or fraudulent.