Brazil is among the most influential democracies in regional and global affairs, yet it continues to confront very serious human rights challenges at home. Faced with high levels of violent crime, some Brazilian police units engage in abusive practices with impunity, instead of pursuing sound policing practices. Justice officials who seek to hold police officers accountable for unlawful practices face threats of violence. In August 2011 Judge Patricia Acioli was gunned down outside her home in the state of Rio de Janeiro, apparently in retaliation for ordering the detention of police officers suspected of murder.