63.Where a tenant has been granted a short Scottish secure tenancy because they have previously been evicted from a tenancy for anti-social behaviour or because an anti-social behaviour order has been taken out against the tenant or one of the tenant's household this section provides for the automatic conversion of the short tenancy to a full Scottish secure tenancy after a period of 12 months, unless the landlord has served a notice to quit on the tenant. Subsections (2) and (3)make further provisions for cases where a landlord has served such a notice to quit. There is no such automatic conversion for tenants who have been granted a short tenancy on other grounds.