grey found an office already abuzz with activity : superintendent rose was meeting the assistant district commissioner to discuss emergency measures , he relaying his concerns of industrial unrest ; while the sergeants and constables were relieving themselves of what duties they could , in preparation for both the potentially exhaustive enquiries ( door-to-door questioning , the distribution of fliers and posters ) involved in a missing persons case they had handled these cases before , they knew what was expected and too whatever crowd control they might be asked to perform at aubreys .