Admissibility of plans or maps as evidence in civil proceedings
13. No plan or map or copy or tracing of a plan or map shall be receivable in evidence in any court in Sri Lanka unless such plan or map has been prepared
(a)by or on behalf of the Surveyor-General by a registered surveyor duly authorised by him and certified by the Surveyor-General or by a registered surveyor duly authorised by him for such purpose: or
(b)and certified by a registered licensed surveyor.