them and from 1945 until 1976, 10 per cent of development in Cochabamba was illegal. From the 1970s the government has attempted to regularize the squatter settlements and the programs have largely failed due to corruption. A fresh initiative set up in 2002 did not prevent new settlements being squatted. In the 1990s, La Paz had 48 unauthorised graveyards where the poor buried their dead. The land was squatted and there was no record of how many people were buried in the cemeteries. There are also squatters in the forest lowlands who are illegal loggers. Indigenous peoples occupied a gold mine at Tacacoma in 2015 which they said was on their ancestral land. When 200 police officers attempted to evict them, four were taken hostage and one died. Brazil In Brazil, informal settlements are called favelas; a famous example is Rocinha in Rio de Janeiro, home to up to 180,000 people. Favelas are mostly inhabited by the poorest strata of society, and usually lack much infrastructure and public services, but in some cases, already have reached the structure needed for a city. As of 2004, across Brazil there were 25 million people living in favelas. After failed attempts in the 1960s and 1970s to bulldoze slums out of existence, the authorities moved towards a policy of toleration. In São Paulo, until 1972 favelas were usually demolished; after that time they were permitted, meaning that in the next decade the number of squatters rose to one million. The largest favela is Heliópolis, with over 200,000 inhabitants as of 2018. It has been officially recognized as a regular neighborhood of the city. There are also a number of squatter buildings in the inner city, the most famous of which was a 22-storey building called Prestes Maia, whose inhabitants were ordered to leave in 2006. Various occupations in buildings and unoccupied areas in big cities, led by groups such as the Homeless Workers' Movement (MTST) or Downtown Roofless Movement (MSTC), have occurred. There are also rural squatter movements in Brazil, such as the Landless Workers' Movement (MST), which organise land occupations. For example, in Pontal do Paraná in the state of Paraná 112 occupations were carried out, housing 6,500 families. Colombia The Colombian Constitution of 1991 states that housing is a universal human right. In 2010, Colombia was the country with the second most internally displaced people in the world, at an estimated