Hungarian jurist; born at Kecskemé in 1842. In 1870 he received the degree of doctor of law, three years later becoming privat-docent at the University of Budapest. In 1886 he became professor of criminal law, which position he still occupies. He founded the university seminary for penal law. He wrote: "Bünvádi Eljárásunk Reformjához" (1884); "Bünvádi Eljárás a Törvény Székek Elött" (1885), "A Magyar Bünvádi Eljárás mai Ervényében" (1887); "Bünügyi Esetek Seminariumi Használatra" (1891); "Tanulmányok a Büntetöjog es a Bünvádi Eljárás Köréböl" (1894). He edited the "Magyar Themis"(1870-80) and the "Jogtudományi Kozlöny" (since 1880). Fayer is secretary of the Society of Hungarian Jurists, and a corresponding member (elected 1894) of the Hungarian Academy of Sciences. He has published several scientific works.
- Szinnyei, Magyar Irók Tára, iv.