This article examines and attempts to refute the proposition that prerogatives at common law exist in Malaysia by virtue of devolution from the Crown onto the Yang di-Pertuan Agong. It goes on to consider the possibility of prerogatives existing in Malaysia by virtue of the vesting of executive power under the Constitution, drawing a distinction in this regard between external and domestic prerogatives, and concludes with an analysis of the problem of the royal assent which was resolved by the constitutional crisis of 1983/4.