As Mugabe's main opponent in Parliament at the head of the Republican Front (as the RF renamed itself in 1981), Smith presented himself as the guardian of what he called Zimbabwe's "white tribe". He spoke gloomily about Zimbabwe's future prospects, repeatedly accused the Mugabe administration of corruption, malevolence and general incompetence, and criticised Mugabe's support for a one-party system. The RF took an increasingly confrontational line in the House after Mugabe and other government ministers began regularly pouring scorn on the white community in national broadcasts and other media. Amid rising tensions with South Africa, various white Zimbabweans were arrested, accused of being South African agents, and tortured. When Smith complained about whites being imprisoned without trial under emergency powers, a number of ZANU–PF MPs pointed out that they themselves had been detained under that same legislation, and for far longer, by Smith's government. Mugabe openly admitted torturing suspected spies, had some who were found not guilty by the High Court immediately rearrested on the street outside, and accused Western critics of caring only because the people in question were white.