This chapter examines officers’ contributions to the metropolitan discourses about slavery and abolition taking place in Britain in the early to mid-nineteenth century. Furthering the theme of naval officers playing an important part in the social and cultural history of the West African campaign, it uncovers connections between the Royal Navy and domestic anti-slavery networks, and the extent to which abolitionist societies and interest groups operating in Britain during the first half of the nineteenth century forged relationships with naval officers in the field. Officers contributed to this ever-evolving anti-slavery culture: through support of societies and by providing key testimonies and evidence about the unrelenting transatlantic slave trade. Their representations of the slave trade were used to champion the abolitionist cause, as well as the role of the Royal Navy, in parliament, the press and other public arenas.