Yes. Even if the police did not find sufficient evidence to ticket you, your landlord can potentially evict you for a lease violation involving a criminal act. Under Colorado law, a landlord may terminate a tenancy for a "substantial violation, " including certain criminal acts. The law does not require a criminal conviction or police action for the landlord to proceed with an eviction based on a substantial violation. Your best option to fight an eviction is to contact a landlord-tenant attorney as soon as possible.