Dantsig Baldaev

Dantsig Sergeevich Baldaev (Данциг Сергеевич Балдаев, 1925–2005) was a Russian Buryat soldier, jailer, folklorist, illustrator, and author of books on forensic science. English-language sources usually render his given name as Danzig.

He is known for researching the symbolic language of prison tattoos used by Russia's underworld of career criminals for nearly half a century. Provided by Wikipedia