Dr. Chukwuechefu Ukattah, Senior Associate, Olaniwun Ajayi LP, in his article, “True In Rem and Quasi In Rem Claims: Does Order 5 Rule 1 of the Nigerian Admiralty Jurisdiction Procedure Rules, 2011, Apply to Both?”, notes that an in rem action could either be ‘true in rem’ or ‘quasi in rem’. He argues that Nigerian courts and counsel, have however failed to appreciate the distinction between the two types of in rem action, with a resultant impact on practice and procedure. Against the background of the confusion, he reviews the provision of the Admiralty Jurisdiction Act, the Admiralty Jurisdiction Procedure Rules, and decided cases, with respect to parties, claims and service of processes in true in rem and quasi in rem actions.