Wiktionary
high crime
n. (context legal English) A major crime, notably one subject to high justice, i.e. trial before the highest courts, which may impose the gravest punishments.
Wikipedia
High Crime
High Crime is a 1973 Italian-Spanish poliziottesco film directed by Enzo G. Castellari. The film stars Franco Nero, James Whitmore, Delia Boccardo and Fernando Rey. High Crime was a big success at the time of its release, and helped popularize the Italian cop thriller genre.