Halakhah su Deuteronomio 16:18

The law of appointment of Judges in our days and the days of the Temple and in it are 26 paragraphs All that is explained in these laws is only with the permission of the Exalted Czar, for the law of the King is the law.
It is a positive commandment from the Torah to appoint Judges as it says (Devarim 16:18) Judges and (Enforcement) Officers you should appoint for yourselves. And they need to have Semikha from the Land of Israel specifically. That is, 3 wise men and one of them that has Semikha (Rambam, Sanhedrin Chapter 4, Halacha 3) when they see a wise man that is fit to judge and issue rulings, they should give Semikha and call him Rebbe (Rabbi).

Establishment of a judiciary is rooted in the biblical command "Judges and court officers shall you appoint to yourself in all your gates" (Deuteronomy 16:18). The Jewish judicial system reflected the prescriptions of Jewish law and was comprised of tribunals composed of three judges that heard cases involving monetary disputes, courts consisting of twenty-three judges that were charged with judging persons accused of infractions punishable by death or stripes and a Great Sanhedrin comprised of seventy-one members that sat within the Temple precincts. Although the Great Sanhedrin enjoyed original jurisdiction with regard to certain particular matters, its most critical function was to resolve questions of law that were in doubt or the subject of dispute. Questions of that nature could be certified and brought before the Great Sanhedrin during the course of proceedings before a lower court or could be made the subject of a hearing entirely independent from any proceeding before a court of original jurisdiction.

However, regarding the matter of lashes, there is a difference between [the examples]. As all those [simply] specified in one negative commandment only receive one [set of] lashes - for example, "the wage of a harlot and the price of a dog"(Deuteronomy 23:19); and "leaven and [...] honey" (Leviticus 2:11); "the case of a stranger [or] an orphan" (Deuteronomy 24:17), and all that is similar to them. But the negative commandments that [also] have a general category and are specified at the beginning or end [of the category] - for example, this negative commandment that specified "uncooked and boiled" and is [then] generalized, "Do not eat [...] but only roasted with fire"; and so [too], with a nazerite (Numbers 6:4), "from anything that is obtained from the grapevine [...] may he not eat," and afterwards it specifies, "seeds [...] or skin," ('and grapes wet and dry,' Numbers 6:3) - with these and those similar to them, we give lashes for each and every one. [This is] because the inclusion of the specification that was not needed, indicates lashes for each one [of them], as we have said. And the teacher was prolific in his proofs about this in the ninth shoresh in his Book of the Commandments - that the calculation of commandments is not the same as the calculation of [which commandments require] lashes [independently]. And that which I have said that Ramban, may his memory be blessed, will count each of the ones specified by their names individually - each one by itself - only when they are separate in their content, as we have written; [it] is, for example, [in the case of] 'leaven and honey,' [and] 'the wage and the price.' But in a case where it is the same content - even if they are specified by different names - they are only counted as one commandment. For example, "All male first-borns that are born in your herd and in your flock" (Deuteronomy 15:19) is only one commandment to sanctify all of the first-borns; and the specification is [also] only one commandment. And so [too], "All tithes of the herd or flock" (Leviticus 27:32) is only one commandment to separate to give the tithes of these animals. And so [too], "Judges and officers" (Deuteronomy 16:18) is only that we should establish justice through these people and it is one commandment. And so [too], "An honest balance, honest weights, an honest ephah, and an honest hin" (Leviticus 19:36) is all one commandment, that we should not lie about measures.