http://www.legislation.gov.uk/ukpga/2004/17/section/3Health Protection Agency Act 2004An Act to establish the Health Protection Agency and make provision as to its functions.texttext/xmlenStatute Law Database2015-05-19Expert Participation2013-04-01F13Radiation protection functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .