Lawyer: Russian man's laptop tampered with
[...] a computer forensic expert's report sent to the defense lawyers on March 2, said 274 files were modified and thousands of files had been accessed after the arrest and before the warrant was secured.
Because there's no way to know what the laptop data looked like before the seizure, all evidence taken from the device should be thrown out, Browne said.
"There was no excuse for the per se unreasonable warrantless intrusions into the laptop, which were clearly unconstitutional to any member of law enforcement," the motion said.
[...] it appears that the USSS knowingly failed to disclose that the files had last access and modification dates that were post-seizure and pre-warrant.