The following Case shall be added to the Cases in Part II of Schedule 15 to the 1977 Act (mandatory orders for possession) :
If, in proceedings for possession under Case 19 set out above, the court is of opinion that, notwithstanding that the condition of paragraph (b) or (c) of section 52(1) above is not satisfied, it is just and equitable to make an order for possession, it may treat the tenancy under which the dwelling-house was let as a protected shorthold tenancy.