le procureur du roi, the Public Prosecutor
le tremblement de Injustice ira son train, the whole judicial procédure will take its course. Tout le tremblement {de quelque chose) is used familiarly for 'the whole concern ' (of something).
1. 32. leux = leur. It is one of the characteristic features of the Paris dialect (slang) not to pronounce final liquids ; see note top. 171,1.20.
y. This pleonastic use of y is also fréquent in the dialect of Paris.