Le funzioni della Corte

In Italy, the Supreme Court is at the top of the ordinary jurisdiction; between the main functions that are conferred by the Basic Law on the Judiciary of 30 January 1941 no. 12 (art. 65) is to ensure "the exact observance and uniform interpretation of the law, the unity of the national objective law, compliance with the limits of the various jurisdictions." One of the key features of its mission and unifying nomophylactic essentially aimed at ensuring certainty in the interpretation of the law (in addition to issue judgments of the third degree) is the fact that, in principle, the current rules do not allow the Court of Cassation to know the facts of a case unless they prove by deeds already obtained in proceedings in the pre-trial stages, and only to the extent that it is necessary to know in order to assess the remedies that the law allows you to use to motivate an application at the Court.
The appeal in cassation may be lodged against the measures issued by the ordinary courts at the appellate level or in degree only: the reasons given to support the use may be, in civil matters, the violation of the right material (errores in iudicando) or procedural (errores in proceeding), the vices of motivation (lack, insufficiency or contradiction) of the judgment under appeal; or, again, the grounds for jurisdiction. A similar scheme is expected to appeal to the Supreme Court in criminal matters.
If the Court finds one of the defects mentioned above, has the power and duty not only to quash the decision of the judge in the lower grade, but also to enunciate the principle of law that the contested measure must be observed: the principle that even the national court can not fail to comply when shall review the facts of the case. The principles laid down by the Supreme Court are not, however, binding on the courts, in general, when they must decide different causes, in respect of which the decision of the Supreme Court may, however, be considered a "previous" influential. In fact, the judges of the lower courts shall comply with decisions of the Supreme Court in the majority of cases.
You do not need any special permission to file an appeal before the Supreme Court.
According to article 111 of the Constitution every citizen may appeal to the Supreme Court for violation of the law against any decision of the judicial authority, without issuing any appeal in civil or criminal, or against any measure restricting personal freedom.
The Court of Cassation is also assigned the task of establishing jurisdiction (ie, indicate, when you create a conflict between the ordinary courts and the special, Italian or foreign, who has the power to treat the cause) and the competence (ie, to resolve a conflict between two lower courts).
The Supreme Court also performs non-judicial functions relating to elections and referendum for the repeal of laws.