PEC 37, an amendment to the Brazilian constitution which will make it impossible for the Department of Public Prosecution to investigate corruption, will be voted on next week.
One of the biggest cases in Brazil returned to the country's highest court and began hearing appeals by the 25 people convicted in a scheme to buy pro-government votes.
The Economist reported that a scheme for buying votes in the Brazilian Congress led to 25 individuals being found guilty of corruption, money-laundering and improper use of public funds.