http://www.legislation.gov.uk/ukpga/2004/17/schedule/1/paragraph/28Health Protection Agency Act 2004An Act to establish the Health Protection Agency and make provision as to its functions.texttext/xmlenStatute Law Database2015-05-19Expert Participation2013-04-01SCHEDULESSCHEDULE 1Health Protection AgencyAuthentication of sealF128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .