Under the Special Powers Act, it was legal to hold someone indefinitely without trial, and internment had been used periodically in Northern Ireland. But not on this scale. Of the nearly 350 suspects arrested that day, not a single one was a loyalist, though there were plenty of loyalist paramilitaries engaged in terrorism at the time. This disparity in treatment only compounded the impression, in the minds of many Catholics, that the army was simply another instrument of sectarian oppression.
