This Act is of interest because it is used to justify domain seizures and takedowns, for instance by PIPCU.
Section 328: Arrangements
This section states that:
A person commits an offence if he enters into or becomes concerned in an arrangement which he knows or suspects facilitates (by whatever means) the acquisition, retention, use or control of criminal property by or on behalf of another person.
Thus the argument can be made that a host or domain company is committing an offence once they have been notified that criminals are using domains or web servers.
Counter arguments would include whether a police notification actually creates knowledge or suspicion, and whether the value of the arrangement really could result in court action.
- Section 328 Arrangements, Proceeds of Crime Act 2002, legislation.gov.uk