[fred_is_fred]

How difficult would it be with 2023 technology to produce DNA trace evidence for someone else given the sequenced information in these systems? Is there enough information there to do that, and if so, what are the technology hurdles?

[jacquesm]

23andMe has - fortunately, and to the best of my knowledge - not done any whole genome sequencing, they have made 'prints' ('Genotypes') that can be used to identify a person, but can't be used to re-sequence the DNA. That said: they do have your samples and there is a chance that they have made full sequences of select samples. But whole genome sequencing is still expensive enough that they would not be able to do this today. But given a few years advances in readers and someone with access to the samples could re-run all of them and obtain full sequences for their whole sample inventory.

[fred_is_fred]

Am I right that sequencing the DNA is one thing but manufacturing or copying? that DNA to produce enough to falsify evidence would be much more difficult - in a Gattica type scenario?

[dekhn]

They did WGS for a research project. BUt it's not part of their normal product line.