Q789: I am a tenant and wish to sub-let. What is the law regarding sub-letting?
Sub-letting without permission is normally considered a matter of civil, rather than criminal law.
However, if you are a tenant that is living in social housing and you decide to sub-let your property or assist someone else to sub-let such a property, you may have committed a criminal offence.
It is the responsibility of Local Authorities, rather than the police, to prosecute any instances of unlawful sub-letting.
The Citizens Advice Bureau provide comprehensive information relating to both the civil and criminal liabilities which can arise when a property is sub-let without the relevant permissions.
Please see the link in related information.