17.Part 7 of the Act includes new criminal offences of: assisting unlawful immigration; trafficking of people into, out of or within the UK for the purpose of prostitution; forgery and similar activities relating to the Application Registration Card; failure to comply with a notice requesting information in respect of suspected immigration offending; and an offence relating to the possession of an immigration stamp, whether genuine or a replica, without a reasonable excuse. This part also amends and modifies the law on offences relating to the employment of persons who are subject to immigration control; This Part also contains provisions which give police and immigration officers the power to enter business premises to search for and arrest immigration offenders, and to inspect and seize personnel records following the arrest of an immigration offender on those premises.