Carl A. Trocki's 1999 publication Opium, empire and the global political economy (London: Routledge) is in many ways an important work. His thesis that ‘Without opium there would have been no empire’ is controversial. However, the purpose of this research note is not to refute Trocki's thesis, or indeed to present a new one, but rather to examine Trocki's use of primary documentation, where some difficulties emerge. Not only are some of his East India Company (EIC) documents quoted incorrectly or used out of context, but a limited further study of the same documents sheds some doubt on Trocki's interpretation of the opium trade. Some of the papers quoted even offer intriguing insights into the nature of the EIC's opium monopoly. The issue of opium smuggling (and illicit opium production) within India was ignored by Trocki, although one of his main documents discusses the issue at length. Concern over opium smuggling within India (and by Indians) and its inevitability constituted the main moral basis of the EIC opium monopoly.