 Peter de Marneffe distinguishes four approaches to laws governing prostitution. (1) Prohibition involves criminalizing both the sale and purchase of sexual services, along with related activities, such as soliciting or operating a brothel. (2) Abolition involves criminalizing only the purchase of sexual services, along with related activities such as curb (“kerb”) crawling or procuring. (3) Regulation (legalization) involves governmental licensing and regulating of sex work businesses. (4) Decriminalization involves removing criminal prohibitions for acts of purchasing or selling sex among consenting adults (de Marneffe 2010: 28–30; see also Kotiswaran 2011: 16). According to de Marneffe, one can defend decriminalization by appealing to the moral right to self-sovereignty, without supporting legalization, especially of large scale enterprises (de Marneffe 2013).