The lex Papia Poppaea was enacted in 9
The lex Laetoria (or Plaetoria) was a law of the late 3rd or early 2nd century
Provocatio was a method for appealing the decision of a Roman magistrate. Provocatio could occur after a normal trial had been conducted in front of a magistrate with imperium. After the final judgement, the defendant could call out “provoco.” The act of provocatio called upon the protection of the tribuni plebis, who transferred the power to adjudicate to the Roman people (iudicium populi). The people could then confirm or reject the magistrate’s sentence.
Not all judgements were subject to provocatio; it only applied to the power of coercitio of higher magistrates (consuls and praetors). Sentences meted by the quaestors were excluded. The judgements of the pontifex maximus were also excluded, although the fines he imposed could be appealed. In fact, provocatio is mentioned in the sources only for political crimes, such as perduellio. The idea that the iudicium populi was part of every trial, first suggested by Mommsen and still sometimes repeated, is therefore incorrect.
James R. Townshend
Locatio conductio was one of the four consensual *contracts of Roman law. It covered the hiring or leasing of things as well as contracts of employment in the form either of the hire of services or of a contract for work to be done (locatio conductio rei, operarum, and operis, in modern terminology). The common denominator was that one party ‘placed out’ (locare) a thing, his services, or a job to be done, which the other party ‘carried along’ or ‘took over’ (conducere), see
A. N. Sherwin-White and Andrew Lintott
Magister libellorum (‘master of petitions’), originally a libellis (‘secretary for petitions’), an officer on the Roman emperor's staff whose duty was to deal with written petitions from private persons to the emperor and draft replies to them, known as rescripts (rescripta: originally written on the petition itself and called subscripts: subscriptiones, see