At the onset of World War I, the reassignment of most of the British army in India to Europe and Mesopotamia, had led the previous viceroy, Lord Harding, to worry about the "risks involved in denuding India of troops". Revolutionary violence had already been a concern in British India; consequently, in 1915, to strengthen its powers during what it saw was a time of increased vulnerability, the Government of India passed the Defence of India Act 1915, which allowed it to intern politically dangerous dissidents without due process, and added to the power it already had—under the 1910 Press Act—both to imprison journalists without trial and to censor the press. It was under the Defence of India act that the Ali brothers were imprisoned in 1916, and Annie Besant, a European woman, and ordinarily more problematic to imprison, was arrested in 1917. Now, as constitutional reform began to be discussed in earnest, the British began to consider how new moderate Indians could be brought into the fold of constitutional politics and, simultaneously, how the hand of established constitutionalists could be strengthened. However, since the Government of India wanted to ensure against any sabotage of the reform process by extremists, and since its reform plan was devised during a time when extremist violence had ebbed as a result of increased governmental control, it also began to consider how some of its wartime powers could be extended into peacetime.