The arrest this week of a 63-year-old woman in Burkina Faso accused of circumcising 16 young girls has brought home to many that genital mutilation is still widespread in the west African state, despite being outlawed eight years ago. Since 1996, when the landlocked state formally declared genital mutilation illegal, the number of excisions practised in Burkina has fallen sharply, from a prevalence rate of 66 percent to 40 percent, according to the national watchdog group, the CNLPE.