Brazilian victims of domestic violence used mobile ' panic button ' in pilot project . `` I had to reschedule all my patients until the marks on my body disappeared . '' When activated , device emits a signal and records conversations . Jaina Sharma used panic button when her husband attacked her ; he was later jailed . Vitoria , city where pilot scheme is taking place , has world 's highest female murder rate .
Brazilian victims of domestic violence used mobile ' panic button ' in pilot project . When activated , device emits a signal and records conversations . Jaina Sharma used panic button when her husband attacked her ; he was later jailed . Vitoria , city where pilot scheme is taking place , has world 's highest female murder rate .