The company operating offshore immigration centres has defended its conduct, amid allegations some of its staff members abused child asylum seekers on Nauru. Senior officials from Transfield Services have told [an Australian] Senate inquiry, six members of the company's staff have been dismissed and the cases have been referred onto the Nauruan police... Transfield Services have confirmed that it has received 67 allegations of child abuse at the centre on Nauru. 30 of the allegations were made against staff at the facility. It says 33 asylum seekers claim to have been raped or sexually assaulted. Transfield's Commercial Manager Erin O' Sullivan has told the Senate inquiry, the company has taken what he called decisive action when the allegations were raised... Transfield has only just introduced a human rights policy over the past week, committing itself to treating asylum seekers with dignity.