(a) Grounds for Eviction. Notwithstanding any provision of this code to the contrary, a landlord may bring an action to recover possession of a rental unit upon any of the following grounds:
(1) The tenant is committing or permitting to exist any illegal drug activity, gang-related crime, or drug-related nuisance on the premises; or
(2) The tenant has been convicted of a crime wherein the underlying offense involves illegal drug activity, drug-related nuisance activity or a gang-related crime on the premises.
(Ord. 530 § 1 (part), 1999).