If a person transgresses any of these rules, the penalty shall fit the crime.

[Quod quis earum rerum migrassit, noxiae poena par esto.]

Marcus Tullius Cicero (106-43 BC) Roman orator, statesman, philosopher

De Legibus [On the Laws], Book 3, ch. 4 / sec. 11 (3.4/3.11) [Marcus] (c. 51 BC) [tr. Rudd (1998)]
    (Source)

A variant on the Latin legal maxim, culpae poenae par esto, usually rendered "Let the punishment fit the crime" (see also Gilbert & Sullivan, The Mikado (1885)).

(Source (Latin)). Alternate translations:

If any one shall infringe any of these laws, let him bear the penalty.
[tr. Barham (1842)]

If any one shall infringe any of these laws, let him be liable to a penalty.
[tr. Barham/Yonge (1878)]

The punishment for violation of any of these laws shall fit the offense.
[tr. Keyes (1928)]

Whatever of these someone has violated, let the penalty be equivalent to the crime.
[tr. Zetzel (1999)]

Whatever of these matters someone departs from, let there be a penalty equal to the wrongdoing.
[tr. Fott (2013)]

Whatever someone has violated, let the punishment match the offense.
[Bartelett's]