Suetonius,
Tiberius, 58. I'm never sure how far to believe this guy, but I'm currently reading Tacitus'
Historia, and it'll be interesting to see whether he corroborates the story.
LVIII. It was at about this time that a
praetor asked him whether he should have the courts convened to consider cases of lese-majesty; to which he replied that the laws must be enforced, and he did enforce them most rigorously. One
man had removed the
head from a statue of
Augustus, to substitute that of another; the case was tried in the Senate, and since the evidence was conflicting, the witnesses were examined by torture. After the defendant
had been condemned, this kind of accusation gradually went so far that even such acts as these were regarded as capital crimes: to beat a slave near a statue of
Augustus, or to change one's clothes there; to carry a ring or coin stamped with
his image into a privy or a brothel, or to criticize any word or
act of
his. Finally, a
man was put to death merely for allowing an honour to be voted him in
his native town on the same day that honours
had previously been voted to
Augustus.