The article presents the status quo of the law of retrial in Germany and gives an overview of the law and practice of the latter in favour of the convicted and to the disadvantage of the defendant. Particularly, the formal and material prerequisites for a successful petition to retry the criminal case are subject to a detailed presentation and evaluation. Because no official statistics are kept regarding successful retrial processes in Germany, the actual number of judicial errors is primarily the subject of more or less well-founded estimates by legal practitioners and journalists. However, there are a few newer empirical studies devoted to different facets of the subject. These studies will be discussed in this article in order to outline the state of empirical research on the legal reality of the retrial procedure. Against this background, the article will ultimately highlight currently discussed reforms and subject these to a critical evaluation as well. The aim of the recent reform efforts is to add a ground for retrial to the disadvantage of the defendant for cases in which new facts or evidence indicate that the acquitted person was guilty. After detailed discussion, the proposal in question is rejected, inter alia for constitutional reasons.