The tenant or a person residing in or visiting the dwelling-house—
(a)has been guilty of conduct causing or likely to cause a nuisance or annoyance to a person residing, visiting or otherwise engaging in a lawful activity in the locality, or
(b)has been convicted of—
(i)using the dwelling-house or allowing it to be used for immoral or illegal purposes, or
(ii)an [indictable] offence committed in, or in the locality of, the dwelling-house.
The Court then has to go on to consider whether it is reasonable to make a possession order and must take into account the following:
The court must consider, in particular—
(a)the effect that the nuisance or annoyance has had on persons other than the person against whom the order is sought;
(b)any continuing effect the nuisance or annoyance is likely to have on such persons;
(c)the effect that the nuisance or annoyance would be likely to have on such persons if the conduct is repeated.