There's a whole host of new potential investigative technology that may be right around the corner:
- memory extraction
- DNA to photograph / phenotype
- photograph to DNA
- environmental DNA recovery from exhalation, etc.
Perfect way for the powerful to completely control the population as slaves.
If they can have total access to your every thought, they might as well stop the charade of treating you like a free person.
That said, directly reading memories is unlikely to be necessary. In Daniel Suarez's Daemon/Freedom™, he proposes using fMRI and increasingly narrow questions to extract truthful information. The blood flow in our brains changes when we lie, and is much easier and faster to detect.
[1] https://web.archive.org/web/20111216184729/http://newscenter...
Except when we're innocent and anxious, or sociopathic and calm. or misguided and/or dellusional and believe our lies as truth.
In other words, the same pseudoscience as good old "lie detectors".
USG still uses that pseudoscientific nonsense in its security clearance process. They could save a whole lot of money by buying e-meters from the Church of Scientology, and achieve the same result.
it's not even clear why you would want to anyways. Human recall is notoriously terrible.
And then police will stop you for a busted taillight and extract the memory of 76 counts of jaywalking.
But when Jeffrey Epstein v2.0 is caught, the scanner will mysteriously malfunction and he will also die in his cell, just like the V1.0 did.
Just like the current spying and tracking apparatus - great at finding blackmail and dirt on a random citizen, but it will never finding any evidence to convict a CEO, and never find who stole your bicycle in the hood.