The article deals with the policy of Britishcolonial administration of Nova Scotia towards the Acadians (French speaking majority) in the late 1740s to mid - 1750s. It shows the changes in that policy which occurred after the foundation of Halifax (1749). It stresses an increase in tension in Nova Scotia, caused both by the objective strengthening of the British authorities' positions and by the provocative actions of some French missionaries (first of all. Abbot Le Loutre) and the administration of New France as a whole. At the same time, the author comes to the conclusion that the deportation of the Acadians (Le Grand derangement) carried out by the British in 1755 was not inevitably predetermined and / or conditioned by the events that took place in Nova Scotia in the period under consideration.