This sounds a bit like Charles Stross's Rule 34.
Charles Stross’s latest science fiction novel, Rule 34, includes a whole lot of deep thinking on the implications of widespread 3D printing. We’ve discussed some of these issues before, but Stross’s novel proposes another more aggressive solution: forbidden shapes. In other words, 3D printers could be rigged to detect and prevent the production of certain objects deemed illegal. The printers may even report you for attempting such, too.
The plot dances between three main threads. Inspector Kavanaugh does some enforcement of illegal printing of 3D items (mentioned in the narrative 3D printing of weapons, and of realistic dolls of other people, the "Rule 34" of the title, including some underage), Anwar a former identity thief who now works for the Operation, a criminal organization, and The Toymaker, an enforcer for the Operation.
As a 2011 book, it would be a little bit late on your time table (the prior book, Halting State, about an MMO heist tied to real money, was released in 2007). One thing that might stick out to you if you read most or all of the book is that The Toymaker is a paranoid schizophrenic, convinced that he's always being watched by beings that want to skin him and wear his flesh, and near the end of the book, Kavanaugh muses that, with mass surveillance being what it is, paranoid schizophrenics aren't necessarily wrong that they're always being watched.