Operation Spanner was the name of an operation carried out by police in Manchester in the United Kingdom in 1987.
The police had obtained a video which they believed depicted acts of sadistic torture, and they launched a murder investigation, convinced that the people in the video were being tortured before being killed. This resulted in raids on a number of properties, and a number of arrests.
The apparent "victims" were alive and well, and soon told the police that they were participating in private homosexual BDSM activities. Although all of those seen in the videos stated that they were willing participants in the activities depicted on the videos, the police and Crown Prosecution Service insisted on pressing charges. Sixteen men were charged with various offences, including "assault occasioning actual bodily harm" (ABH).
Heavily influenced by the nineteenth century boxing case of R v. Coney, the trial judge ruled that consent was not a valid defence to ABH, and the defendants pleaded guilty. The case was appealed first to the High Court, then to the House of Lords. In March 1993, the appeal was dismissed (R v Brown (1993) 2 All ER 75) by 3-2 majority of the Lords, with Lord Templeman in particular declaring that:
"In principle there is a difference between violence which is incidental and violence which is inflicted for the indulgence of cruelty. The violence of sadomasochistic encounters involves the indulgence of cruelty by sadists and the degradation of victims. Such violence is injurious to the participants and unpredictably dangerous. I am not prepared to invent a defence of consent for sadomasochistic encounters which breed and glorify cruelty [...]. Society is entitled and bound to protect itself against a cult of violence. Pleasure derived from the infliction of pain is an evil thing. Cruelty is uncivilized."
An attempt to overturn the convictions in the European Court of Human Rights in 1997 failed (see Laskey, Jaggard and Brown v. United Kingdom).
The legal rationale for the decisions were broadly speaking as follows:
The fallout from the Spanner case led to the setting up of the Countdown on Spanner (now SM Pride) and Spanner Trust organizations.
As a result of the Spanner case, the Law Commission is currently investigating the status of consensual sadomasochistic acts in the law of England and Wales.
In the Criminal Justice and Immigration Bill 2007, the Government cited the Spanner case (Brown  1 AC 212) as justification for criminalising images of consensual acts, as part of its proposed criminalisation of possession of "extreme pornography".
This article is based on "Operation Spanner" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=Operation+Spanner&action=history