Role of the court in civil matters The civil divisions of the Federal Court of Justice primarily deal with appeals on points of law () and complaints against denial of leave to appeal on points of law (). In a typical civil case in Germany, the losing party in the court of first instance can appeal to a court of second instance if the subject matter of the appeal is greater than 600 euros or the court of first instance expressly allowed the appeal. Such an appeal () can be both on points of fact and on points of law, and it prompts the appellate court to re-hear the entire matter (that is, it (re-)hears witnesses, including potential new witnesses, and re-tries material issues of fact). In some cases, the decision by the appellate court can then be further appealed to the Federal Court of Justice—but this time only on points of law. Examples of such points of law are (alleged) procedural defects or an incorrect understanding of the law that led to the lower court's decision. The Federal Court of Justice itself does not receive additional evidence, nor does it hear witnesses, and conducts its review of the lower court's decision based on the briefs submitted by counsel, the record of lower court proceedings, and oral argument. In some instances where the five judges of the panel unanimously find that an appeal is inadmissible or has no chance of success, they can dismiss it without oral argument. In general, bringing a civil case to the Federal Court of Justice requires a grant of leave to appeal by the appellate court. An appellate court is legally required to grant leave if (a) the legal matter is of fundamental significance or if (b) the further development of the law or the interests in ensuring uniform adjudication require a decision to be handed down by the Federal Court of Justice. If leave to appeal is granted, the Federal Court of Justice is bound by this determination of the lower court and has to take the case. Should an injured party feel that the appellate court has wrongly decided not to grant leave to appeal, they can file a with the Federal Court of Justice provided that the subject matter of the appeal is greater than . If the Federal Court of Justice agrees that leave to appeal on a point of law was wrongly denied, it grants leave on its own and subsequently rules on the appeal. To the extent the appeal on points of law is deemed justified, the Federal Court of Justice reverses the contested judgment and
remands the matter (sends it back) to the lower court, which decides on it once again. In doing so, the lower court must comply with the Federal Court of Justice's decision.
Role of the court in criminal matters The criminal divisions of the Federal Court of Justice primarily deal with appeals on points of law (). In Germany, criminal cases involving lesser offenses are decided in the first instance by a district court (), while more serious offenses are initially decided by panels of regional courts () or, in few cases, higher regional courts (). Criminal cases originating in a regional or higher regional court can subsequently be appealed to the Federal Court of Justice on points of law. Unlike in civil cases, no grant of leave is required to appeal. An appeal can be brought by the defendant or the
public prosecutor's office. In some trials, the public prosecutor is joined by one or more private accessory prosecutors (), which is a role that can be assumed by the victims of a number of serious offenses such as murder or sexual abuse, or by individuals whose children, parents, siblings, spouses or life partners were killed through an unlawful act. Private accessory prosecutors also have a right to initiate an appeal to the Federal Court of Justice, although their ability to appeal is somewhat more limited. As in civil matters, appeals on points of law in criminal matters may allege procedural defects or an incorrect understanding of the law that led to the trial court's decision, and—again as in civil cases—the Federal Court of Justice itself does not receive additional evidence, nor does it hear witnesses. Instead, it conducts its review of the lower court's decision based on the briefs submitted by counsel and the record of lower court proceedings. In some instances where the five judges of the panel unanimously find that a criminal appeal is inadmissible or has no chance of success, they can dismiss it without oral argument. Unlike in civil matters, a panel can also unanimously decide in favour of a defendant without oral argument. In other cases, oral argument is held. To the extent the appeal on points of law is deemed justified, the Federal Court of Justice
vacates the contested judgement and sends the matter back to the regional or higher regional court, respectively. In general, vacating a judgement does not mean setting aside the trial court's factual findings. However, the Federal Court of Justice quashes factual findings insofar as they are affected by the violation of law by virtue of which the judgment is vacated. Therefore, a grave procedural defect may lead to an entirely new trial; on the other hand, if a trial court improperly did not find a particular offense on the basis of an incorrect understanding of its legal requirements, the factual findings may be left in place entirely, and the trial court, as the basis for its new judgement, may only have to take additional evidence pertaining to the (previously misunderstood) requirements of said offense. In a minority of cases, the Federal Court of Justice can also decide a case on the merits without sending it back. This can occur, for instance, when a trial court has made a finding about the defendant's actions pertaining to an offense committed by someone else and has determined on that basis that the defendant is guilty of aiding the third party in committing the offense; if the Federal Court of Justice later deems the defendant's actions—as found by the trial court—insufficient to justify a conviction as an aider, the Federal Court of Justice may acquit the defendant.
Investigating judges Two judges of the Federal Court of Justice (plus four judges acting as their deputies) serve as the
investigating judges () of the court. In the German criminal law system, investigating judges are responsible for deciding on arrests, provisional placements, seizures, searches, and other measures in relation to a criminal investigation. The jurisdiction of the investigating judges of the Federal Court of Justice is limited to investigations for a small subset of crimes, such as
war crimes,
crimes against humanity,
high treason and the formation of
terrorist organisations, where the
Public Prosecutor General () leads the investigation. The Public Prosecutor General may also take over an investigation of various more ordinary offenses (including murder, manslaughter and abduction) under certain circumstances (for instance where the offence is capable of undermining the continued existence or security of the Federal Republic of Germany) and when it deems the crime to be of "special significance". In such cases as well, the investigating judges of the Federal Court of Justice have jurisdiction.
Special divisions Appeals of decisions in some particular areas of the law are handled by special divisions of the court. The following table lists the special divisions of the Federal Court of Justice. All judges of the Federal Court of Justice that serve in a special division are regular members of a civil and/or criminal division.
Grand Panels and Joint Panel All divisions of the court are at liberty to deviate from their own prior jurisprudence at any time. However, when a panel wishes to deviate from the jurisprudence of one or more other divisions, it must submit a request to those divisions (), asking them whether they stand by their prior decision(s). If any of the divisions do, and if the requesting panel still intends to deviate, it must refer the issue to a Grand Panel. In cases of disagreement between civil divisions, the ultimate arbiter is the Grand Panel for Civil Matters (), a special panel of the court composed of the presiding judges of each of the 13 civil divisions and the president of the court; in cases of disagreement between criminal divisions, the issue is referred to the Grand Panel for Criminal Matters (), which is made up of two representatives from each of the six criminal divisions and the president of the court. If a difference of opinion arises between a criminal and a civil division, the dispute must be resolved by the Joint Grand Panels (), which consists of all the members of the Civil and the Criminal Grand Panel. If any division of the Federal Court of Justice intends to deviate from a decision by one or more divisions of any other German supreme court (i.e. the Federal Administrative Court, the Federal Fiscal Court, the Federal Labour Court, or the Federal Social Court), it must refer the issue to the Joint Panel (). The Joint Panel is composed of the presidents of all supreme courts (permanent members) and two judges from each of the divisions involved in the disagreement (ad-hoc members). In practice, the instrument is used only sparsely. In 2021, not a single question was put before the Grand Panel for Criminal Matters (2020: 2). Between 1951 and 2009, only 36 decisions were issued by the Grand Panel for Civil Matters. == Attorneys ==