The landlord under an occupation contract may not, by any act or omission, interfere with the contract-holder's right to occupy the dwelling.
The landlord does not interfere with the contract-holder's right to occupy the dwelling by reasonably exercising the landlord's rights under the contract.
The landlord does not interfere with the contract-holder's right to occupy the dwelling because of a failure to comply with repairing obligations (within the meaning of section 100(2)).
The landlord is to be treated as having interfered with the contract-holder's right if a person who—
(a) acts on behalf of the landlord, or
(b) has an interest in the dwelling, or part of it, that is superior to the landlord's interest,
interferes with the contract-holder's right by any lawful act or omission.
This section is a fundamental provision which is incorporated as a term of all occupation contracts.