Christian Ludwig "Chrislo" Haas (16 November 1956 – 23 October 2004) was a West German Neue Deutsche Welle musician best known as a member of Liaisons Dangereuses and a founding member of Minus Delta t, D.A.F and Der Plan, and also as a member of Crime & the City Solution. Haas' work was extensively documented in Verschwende Deine Jugend (Waste Your Youth), Jürgen Teipel's book on the Neue Deutsche Welle. Haas died in late October 2004 at the age of 47 in Berlin from circulatory collapse due to excessive alcohol consumption.