Gay cruising describes the act of searching about a public place in pursuit of a partner for sex. The activity has existed since at least the 17th century and has a colourful legal history. It differs from prostitution in that the parties involved do not seek money for sex, and from gay nightclubs or bathhouses in that they are not on private premises, although they may take place on private land to which the public have been granted access.
The history of gay cruising is sparsely documented, as the illegality of gay sex meant that those who used such cruising grounds were likely to be discreet about them. Rictor Norton, author of Mother Clap's Molly House (a reference to Margaret Clap), is one of the few historians to address the topic. He believes that the first gay cruising grounds and gay brothels in London may have sprung up in the early 17th century. Theatres were sometimes denounced as such by moralists of the time.
So-called "cruising grounds" or "cruising sites", where gay and bisexual men meet at a public place to cruise for sex, originated in the late 1600s (from the earliest known records, although it most likely originated much earlier) and has continued to the present day. Cruising came about owing to the illegality of homosexual acts in the United Kingdom. Prior to the Sexual Offences Act 1967, this illegality meant that many gay men could not live openly as homosexuals. Cruising provided a way for gay men to solicit sexual encounters while minimizing the risk of being caught by the Police. When cruising first arose, it usually took place in public fields, parks, toilets (or "cottages" as they would become known as in the 20th century). In more recent times, public laybys located either on or off main roads or rural roads have also become popular sites.
Before the 20th century, anal sex, whether conducted in public or private, was illegal under sodomy laws, including the Buggery Act set down by Henry VIII in 1533. The penalty for anal intercourse during most of this period was death, however, specific proof of successful anal penetration was required for this verdict to be brought; the lesser crime of "gross indecency" carried penalties including the pillory (as in the case of the Vere Street Coterie, who were arrested in a raid of a gay club in 1811), transportation, imprisonment, etc.