A 3rd/4th-class
prostitute. Usually works on his/her own, without a pimp or brothel, thus allowing some form of freedom.
Still, since
prostitution is illegal in many countries, streetwalkers often get into trouble with the law. Streetwalkers become easy prey for rapists, murderers, and other criminals (even corrupt
police officers) since they try to keep their liaisons discreet and, being criminals themselves, are not looked out for by police.