5 Conversely, if a person, while absent in the service of the State, or while in the power of an enemy, acquires by usucapion property belonging to some one resident at home, the latter is allowed, within a year from the cessation of the possessor's public employment, to sue for a recovery of the property by a rescission of the usucapion: by fictitiously alleging, in other words, that the defendant has not thus acquired it; and the praetor from motives of equity allows this kind of action to be brought in certain other cases, as to which information may be gathered from the larger work of the Digest or Pandects.

6 Similarly, if a person conveys away his property in fraud of creditors, the latter, on obtaining from the governor of the province a decree vesting in them possession of the debtor's estate, are allowed to avoid the conveyance, and sue for the recovery of the property; in other words, to allege that the conveyance has never taken place, and that the property consequently still belongs to the debtor.

7 Again, the Servian and quasi-Servian actions, the latter of which is also called 'hypothecary,' are derived merely from the praetor's jurisdiction. The Servian action is that by which a landlord sues for his tenant's property, over which he has a right in the nature of mortgage as security for his rent; the quasi-Servian is a similar remedy, open to every pledgee or hypothecary creditor. So far then as this action is concerned, there is no difference between a pledge and a hypothec: and indeed whenever a debtor and a creditor agree that certain property of the former shall be the latter's security for his debt, the transaction is called a pledge or a hypothec indifferently. In other points, however, there is a distinction between them; for the term 'pledge' is properly used only where possession of the property in question is delivered to the creditor, especially if that property be movable: while a hypothec is, strictly speaking, such a right created by mere agreement without delivery of possession.

8 Besides these, there are also personal actions which the praetor has introduced in virtue of his jurisdiction, for instance, that brought to enforce payment of money already owed, and the action on a banker's acceptance, which closely resembled it. By our constitution, however, the first of these actions has been endowed with all the advantages which belonged to the second, and the latter, as superfluous, has therefore been deprived of all force and expunged from our legislation. To the praetor is due also the action claiming an account of the peculium of a slave or child in power, that in which the issue is whether a plaintiff has made oath, and many others.

9 The action brought to enforce payment of money already owed is the proper remedy against a person who, by a mere promise, without stipulation, has engaged to discharge a debt due either from himself or from some third party. If he has promised by stipulation, he is liable by the civil law.

10 The action claiming an account of a peculium is a remedy introduced by the praetor against a master or a father. By strict law, such persons incur no liability on the contracts of their slaves or children in power; yet it is only equitable that damages should still be recoverable against them to the extent of the peculium, in which children in power and slaves have a sort of property.

11 Again, if a plaintiff, on being challenged by the defendant, deposes on oath that the latter owes him the money which is the object of the action, and payment is not made to him, the praetor most justly grants to him an action in which the issue is, not whether the money is owing, but whether the plaintiff has sworn to the debt.

12 There is also a considerable number of penal actions which the praetor has introduced in the exercise of his jurisdiction; for instance, against those who in any way injure or deface his album; or who summon a parent or patron without magisterial sanction; or who violently rescue persons summoned before himself, or who compass such a rescue; and others innumerable.

13 'Prejudicial' actions would seem to be real, and may be exemplified by those in which it is inquired whether a man is free born, or has become free by manumission, or in which the question relates to a child's paternity. Of these the first alone belongs to the civil law: the others are derived from the praetor's jurisdiction.

14 The kinds of action having been thus distinguished, it is clear that a plaintiff cannot demand his property from another in the form 'if it be proved that the defendant is bound to convey.' It cannot be said that what already belongs to the plaintiff ought to be conveyed to him, for conveyance transfers ownership, and what is his cannot be made more his than it is already. Yet for the prevention of theft, and multiplication of remedies against the thief, it has been provided that, besides the penalty of twice or four times the value of the property stolen, the property itself, or its value, may be recovered from the thief by a personal action in the form 'if it be proved that the defendant ought to convey,' as an alternative for the real action which is also available to the plaintiff, and in which he asserts his ownership of the stolen property.