Bullshit Detector was the name of a series of compilation LPs put together by the anarcho-punk band (and art collective) Crass and released on their Crass Records label. Three editions were released between 1980 and 1984, consisting of demo tapes, rough recordings and artwork that had been sent to the band. The sound quality of the Bullshit Detector series was mixed, and was often very basic or poor as Crass would master the tapes directly to record without any additional production or enhancement. For Crass, the expectation of a polished performance was missing the point of the DIY punk ethic: – Sleeve notes from Bullshit Detector Volume 3 The title Bullshit Detector was derived as a reference to the Clash song "Garageland" from their first LP The Clash, a song covered by Chumbawamba guitarist Boffo on the second volume. The series is notable for marking the first appearance on vinyl of both Chumbawamba (on the second volume) and Napalm Death (on the third). The POWER sleeve with marker pen art was designed by Haggis, AKA David Hargreaves lead singer of Youthanasia PX. A fourth, unofficial Bullshit Detector, this time an international compilation, was released by the Swiss independent anarcho-punk record label Resistance Productions in 1994. There have also been records released in a similar style and with similar sentiment such as the 'Bullsheep Detector' compilation of Welsh punk bands released in 2012.

Bullshit Detector Vol 1 (1980)

'''Crass Records. Catalogue no. 421984/4'''

Bullshit Detector Vol 2 (1982)

Crass Records - 221984/3

Disc one

Disc two

Bullshit Detector Vol 3 (1984)

Crass Records - 1984/3

Disc one

Disc two

Bullshit Detector Volume 4 (1994)

Jointly released by Resistance Productions (cat. no. RIP 120), Örmaal Records (ÖR 1), Mass Media Records (MMR 8) and Loony Tunes Records (TUNE 31)

Disc one

Disc two