4.3. Appointment of Solexperts AG a) The chairperson of the departmental bid adjudication committee (DBAC) approved the request to approach a sole provider on 31 October 2008 and the appointment of Solexperts AG as the sole provider for the upgrading of the Trivec Surveillance System on 15 December 2008. b) No significant deviations were identified except that DWA could not provide the contract with Solexperts AG.