POLICE confirmed yesterday that Commercial Crime Bureau officers had visited 10 homes and 17 offices on Wednesday in relation to enquiries into individuals who had previously worked for the National Mutual Insurance Co. The individuals now work for publicly listed Top Glory Insurance Co, but a police spokesman said the investigations were focused on their activities while working at National Mutual, not Top Glory. No arrests were made. National Mutual was at the centre of a row early this year when its managing director, Andrew Yang, left and joined Top Glory. Hundreds of National Mutual staff also left.