"Criminal laws have grown so exuberantly and come to cover so much previously innocent conduct that almost anyone can be arrested for something," Supreme Court Justice Neil Gorsuch observed in 2019. Gorsuch elaborates on that theme in a new book, showing how the proliferation of criminal penalties has given prosecutors enormous power to ruin people's lives, resulting in the nearly complete replacement of jury trials with plea bargains.

"Some scholars peg the number of federal statutory crimes at more than 5,000," Gorsuch and co-author Janie Nitze note in Over Ruled: The Human Toll of Too Much Law, while "estimates suggest that at least 300,000 federal agency regulations carry criminal sanctions." The fact that neither figure is known with precision speaks volumes about the expansion of federal law.

Literally volumes. "By 2018, the U.S. Code encompassed 54 volumes and approximately 60,000 pages," Gorsuch writes, while "the Code of Federal Regulations spanned about 200 volumes and over 188,000 pages" as of 2021.

Since keeping up with all that law is a challenge even for experts, the rest of us cannot hope to know exactly which conduct is a crime, even though "fair notice" is a basic requirement of due process. The civil liberties lawyer Harvey Silverglate has suggested that "the average busy professional in this country" may unwittingly commit "several federal crimes" every day.

And that's just federal law. Thanks to the vast trove of potential charges, Silverglate observes, quoting a warning from Justice Robert Jackson, "prosecutors can easily succumb to the temptation of first 'picking the man and then searching the law books, or putting investigators to work, to pin some offense on him.'"

Former President Donald Trump says that is what happened to him. His 34 felony convictions for paperwork violations stemming from his hush payment to a porn star provide evidence to support that complaint.