Smith v Littlewoods [1987]

Vandals entered defendants’ empty cinema, due for
redevelopment.
Started fire which spread to neighbouring properties.
No general duty at common law to prevent persons
harming others by their deliberate wrongdoing, unless:
1.  Special relationship
existed between plaintiff and defendant.
2.  Where source
of danger was negligently created by defendant and it was reasonably
foreseeable that 3rd parties might interfere and spark off danger.
3.  Where
defendant had knowledge that 3rd party was creating danger on his
property and failed to take reasonable steps to abate it.
On facts, none of the above special circumstances
applied.

Therefore respondents owed no duty of care.