However, nowhere did the NGB define what a ‘slam party’ actually was: it wanted participants to decide whether they belonged to this subculture and then explain what they actually did. It asked the questions in both the section of the survey enquiring about sexual risk taking and in the section about drug use to ensure all relevant responses were captured. In response to concern about a similar scene developing in France, Net Gai Baromètre (NGB), a biennial internet survey of gay men in France, French territories and Quebec, asked users if they attended ‘slam parties’ in their last survey to gauge how common this activity actually was. Needless to say, these reports have created considerable alarm about the possibility of a new gay subculture that may amplify the spread of HIV and hepatitis C, and anecdotally, the large majority of gay men attending support services for drug users in London now report injecting. There has been considerable publicity in the gay, scientific and general media recently about so-called ‘slamming’ or ‘slam parties’, defined as group sex parties where gay men take drugs such as methamphetamine or mephedrone, often by injection, in order to facilitate prolonged sexual activity.