2 The term furtum, or theft, is derived either from furvum, meaning 'black,' because it is effected secretly and under cover, and usually by night: or from fraus, or from ferre, meaning 'carrying off'; or from the Greek word phor, thief, which indeed is itself derived from pherein, to carry off.
3 There are two kinds of theft, theft detected in the commission, and simple theft: the possession of stolen goods discovered upon search, and the introduction of stolen goods, are not (as will appear below) so much specific kinds of theft as actionable circumstances connected with theft. A thief detected in the commission is termed by the Greeks ep'autophoro; in this kind is included not only he who is actually caught in the act of theft, but also he who is detected in the place where the theft is committed; for instance, one who steals from a house, and is caught before he has got outside the door; or who steals olives from an olive garden, or grapes from a vineyard, and is caught while still in the olive garden or vineyard. And the definition of theft detected in the commission must be even further extended, so as to include the thief who is caught or even seen with the stolen goods still in his hands, whether the place be public or private, and whether the person who sees or catches him be the owner of the property, or some third person, provided he has not yet escaped to the place where he intended to take and deposit his booty: for if he once escapes there, it is not theft detected in the commission, even if he be found with the stolen goods upon him. What is simple theft is clear from what has been said: that is to say, it is all theft which is not detected in the commission.
4 The offence of discovery of stolen goods occurs when a person's premises are searched in the presence of witnesses, and the stolen property is found thereon; this makes him liable, even though innocent of theft, to a special action for receiving stolen goods. To introduce stolen goods is to pass them off to a man, on whose premises they are discovered, provided this be done with the intent that they shall be discovered on his premises rather than on those of the introducer. The man on whose premises they are found may sue the latter, though innocent of theft, in an action for the introduction of stolen goods. There is also an action for refusal of search, available against him who prevents another who wishes to look in the presence of witnesses for stolen property; and finally, by the action for nonproduction of stolen goods, a penalty is imposed by the praetor's edict on him who has failed to produce stolen property which is searched for and found on his premises. But the lastnamed actions, namely, those for receiving stolen goods, for introducing them, for refusal of search, and for nonproduction, have now become obsolete: for the search for such property is no longer made in the old fashion, and accordingly these actions went out of use also. It is obvious, however, that any one who knowingly receives and hides stolen property may be sued by the action for simple theft.
5 The penalty for theft detected in the commission is four times the value, and for simple theft twice the value, of the property stolen, whether the thief be a slave or a free person.
6 Theft is not confined to carrying away the property of another with the intent of appropriation, but comprises also all corporeal dealing with the property of another against the will of the owner. Thus, for a pawnee to use the thing which he has in pawn, or to use a thing committed to one's keeping as a deposit, or to put a thing which is lent for use to a different use than that for which it was lent, is theft; to borrow plate, for instance, on the representation that the borrower is going to entertain his friends, and then to carry it away into the country: or to borrow a horse for a drive, and then to take it out of the neighbourhood, or like the man in the old story, to take it into battle.
7 With regard, however, to those persons who put a thing lent for use to a different purpose than the lender contemplated, the rule is that they are guilty of theft only if they know it to be contrary to the will of the owner, and that if he had notice he would refuse permission; but if they believe that he would give permission, it is not theft: and the distinction is just, for there is no theft without unlawful intention.
8 It is also said not to be theft if a man turns a thing lent for use to a use other than he believes its owner would sanction, though in point of fact its owner is consenting. Whence arose the following question: if Antoninus solicits the slave of Peri to steal property of the latter, and convey it to him, and the slave informs Peri of it, who, wishing to detect Antoninus in the very act, allows the slave to convey the property to him; can an action of theft, or for corrupting the slave, or neither, be maintained against Antoninus? The case was submitted to us, and we examined the conflicting opinions of the earlier jurists on the matter: some of whom thought that neither action lay, and others, that Peri might sue on theft only. But we, in order to put an end to such quibbles, have enacted by our decision that in such case both the action on theft and that for corrupting a slave shall lie. It is true that the slave has not been corrupted by the advances made to him, so that the case does not come within the rules which introduced the action for such corruption: yet the wouldbe corrupter's intention was to make him dishonest, so that he is liable to a penal action, exactly as if the slave had actually been corrupted, lest his immunity from punishment should encourage others to perpetrate a similar wrong on a slave less strong to resist temptation.
9 A free man too may be the subject of a theft—for instance, a child in my power, if secretly removed from my control.
10 So too a man sometimes steals his own property—for instance, a debtor who purloins the goods which he has pledged to a creditor.
11 Theft may be chargeable on a person who is not the perpetrator; on him, namely, by whose aid and abetment a theft is committed. Among such persons we may mention the man who knocks money out of your hand for another to pick up, or who stands in your way that another may snatch something from you, or scatters your sheep or your oxen, that another may steal them, like the man in the old books, who waved a red cloth to frighten a herd. If the same thing were done as a frolic, without the intention of assisting a theft, the proper action is not theft, but on the case. Where, however, Titius commits theft with the aid of Maevius, both are liable to an action on theft. A man, too, is held to have aided and abetted a theft who places a ladder under a window, or breaks open a window or a door, in order that another may steal, or who lends tools for the breaking of them open, or a ladder to place under a window, if he knows the object for which they are borrowed. It is clear that a man is not liable on theft, who, though he advises and instigates an offence, does not actually aid in its commission.