SEDGWICK BUYS BSI INCORP Sedgwick Group Plc <SDWK.L> said its wholly-owned Canadian subsidiary Sedgwick Tomenson Inc had acquired BSi Incorp for a maximum eight mln Canadian dlrs. The funds will be raised through the issue of up to 1.16 mln ordinary Sedgwick shares to the vendors of BSi by no later than 31 January 1991. Some 427,054 shares already have been issued. BSi is a privately-held Canadian company involved in actuarial, employee and executive benefits consulting and administration. Its 1986 pretax profits excluding extraordinary items totalled 1.14 mln Canadian dlrs.