Hmmm. An evil maid attack could have gotten the data, and it wouldn’t even have to be his laptop - you could get everything from a Time Machine backup, if you could access it. If the FBI has the laptop, as has been reported, they might be able to access the serial number and verify with Apple the first person it was sold to, and perhaps trace that to or through Hunter Biden.
Judging by the WaPo article, it’s a good bet that most of the data on there is from Hunter Biden - it’s pretty much impossible to create gigabytes of data, including photos and thousands of emails, and make it all internally self-consistent and consistent with data kept places other than the laptop.
However, chain of custody is the real issue. As wguy123 says:
Since it appears the disk image has been mucked around with - the WaPo story talks about several directories created with date stamps since the supposed drop-off - any chain of custody has enough broken links to have no forensic value whatsoever. You literally have no assurance that any particular data on that drive was generated by Hunter Biden, because there is no solid chain of custody back to when it was known (or even suspected) to be in Hunter Biden’s possession. The story’s a success for generating breathless stories on Fox News, OANN and Townhall, and they’ll no doubt froth at the mouth some more when the FBI says the data is useless or a judge throws it out in the pretrial phase, but there’s no way it’s admissible.
Oooh, I just thought - for an evil maid variant, you could get the same model laptop and pull a switch on ol’ Hunter - the only way you could tell, assuming a perfectly cloned drive, is from the model’s serial number. Then the laptop that goes to the repair shop can be traced to Hunter Biden, but it wasn’t him that turned it in…
OK, sounds like a movie plot crossed with a conspiracy theory. But it could be done!
Oh, and the repair shop guy said he kept trying to get the data off the drive using the laptop itself, and it kept rebooting. I think that, given the evidence of liquid damage inside the laptop case, it would have been better to try to get the data off the disk by pulling it out of the laptop and trying to mount it from another computer using an external USB adapter. All of which is to say, I think that repair shop guy is either incompetent or hiding something.