The act is known as kerb crawling because the person will typically drive very slowly along the kerbside.
[6] Police may also collect licence-plate numbers of vehicles that appear to be kerb crawling and may contact their registered owners.
Following the recommendations of the 1984 Criminal Law Revision Committee report Prostitution on the Street, the United Kingdom's Sexual Offences Act 1985 introduced an offence of kerb crawling to persistently solicit women for the purposes of prostitution.
Soliciting in the UK is a summary-only offence limited to a fine, although in some circumstances, offenders can be disqualified from driving and have their cars impounded.
[3] Police in England have the discretion to charge, issue an out-of-court disposal (caution), or even take no further action against offenders, and this depends on local practice.