Again and strictly speaking, the issuing of civil process (here Writ of Summons) should be the concern of the High Court Law and the High Court Rules while the Service of such process will be referable to “the Law made for the Service of civil process of the Courts” – the Sheriffs and Civil Process Act Cap 189 of 1958. The reality of the present position is that the High Court of Lagos (Civil Procedure) Rules not only made provision for Service but also incorporated by direct reference, the Sheriffs and Civil Process Act.
– Oputa, JSC. Adegoke v. Adesanya (1989)