The paper examines the semantics of the so-called focus particle ko as an exhaustive focus marker which expresses exhaustive identification in Dagbani, a Gur language spoken in Ghana. The paper argues that ko expresses exhaustivity in both in situ and ex situ when it occurs in a focus sentence. The paper explores ko as an operator expressing exhaustive focus on constituents and examines exhaustivity of ko as a pragmatic inference giving specific meaning to it. It shows that the particle only occurs in exhaustive focus environments in the language and focuses on both non-subject constituents and subject constituents. The paper argues that Dagbani expresses exhaustive identification in ex-situ and in-situ with evidence to show that the constr...