If the person who has been wronged be unable to inform the magistrates, let any freeman who hears of his case inform, and if he do not, he shall be deemed base, and shall be liable to have a suit for damage brought against him by any one who likes.

And if a slave inform, he shall receive freedom; and if he be the slave of the injurer or injured party, he shall be set free by the magistrates, or if he belong to any other citizen, the public shall pay a price on his behalf to the owner; and let the magistrates take heed that no one wrongs him out of revenge, because he has given information.
Cases in which one man injures another by poisons, and which prove fatal, have been already discussed; but about other cases in which a person intentionally and of malice harms another with meats, or drinks, or ointments, nothing has as yet been determined.

For there are two kinds of poisons used among men, which cannot clearly be distinguished.
There is the kind just now explicitly mentioned, which injures bodies by the use of other bodies according to a natural law; there is also another kind which persuades the more daring class that they can do injury by sorceries, and incantations, and magic knots, as they are termed, and makes others believe that they above all persons are injured by the powers of the magician.

Now it is not easy to know the nature of all these things; nor if a man do know can he readily persuade others to believe him.

And when men are disturbed in their minds at the sight of waxen images fixed either at their doors, or in a place where three ways meet, or on the sepulchres of parents, there is no use in trying to persuade them that they should despise all such things because they have no certain knowledge about them.