British slaves part of a political 'collective' London: A couple accused of keeping three women as slaves in a London house for 30 years are of Indian and Tanzanian origin and two of the victims were part of a political "collective," police say. The two older victims involved in Britain's most notorious case of modern-day slavery are thought to have met the male suspect through a "shared political ideology" and began living with him as part of a collective, London's Metropolitan Police said. Their alleged captors, have been provisionally freed until January pending further investigations.