> to make sure un-audited+un-reviewed access is not possible?
No. They must have a system in place to follow local, state and federal laws, to comply with industry regulations, and to allow discovery for lawsuits. Doing otherwise is illegal.
> effort to get a list of people seeking transportation to certain types of healthcare?
Don't collect that data in the first place. Have retention policies to delete data when it's no longer useful (so long as it's legally permissible), so you can demonstrate to the authorities or judge that it wasn't an attempt to evade or obstruct justice.
> I think you'd be hard-pressed to find a company storing mountains of user data which does not have a lockout plan like this that they will be willing to use against law enforcement in certain scenarios or by default.
This is tampering with evidence, which is a crime. Your view appears to be that nearly all such companies have policies to commit a crime.
Moroever, quoting https://corporate.findlaw.com/litigation-disputes/delete-at-...
] However, a number of courts have issued rulings imposing a duty to preserve before litigation begins if a party knows of the existence of a potential claim and can identify relevant evidence. See, e.g., Silvestri v. General Motors Corp., 271 F.3d 583, 590 (4th Cir. 2001) (upholding sanctions for failure to preserve a car involved in an accident, which plaintiff reasonably should have known would be material evidence in anticipated litigation against auto manufacturer). Therefore, as a practical matter, it is our general advice that you should instruct your colleagues and subordinates to retain records of any business activities for which litigation is anticipated, especially when it becomes apparent (through a demand letter or other saber-rattling) that a business relationship is "going south" and may be headed to court.