The defined benefit scheme in the UK accounts for 92% (2014: 91%) of the net balance sheet liability for material funded defined retirement benefit schemes. It comprises three sections: the Group 4 section which is the pension scheme demerged from the former Group 4 Falck A/S, the Securicor section, responsibility for which the group assumed on 20 July 2004 with the acquisition of Securicor plc, and the GSL section, responsibility for which the group assumed on 12 May 2008 with the acquisition of GSL.