Critically evaluate and appraise that underpins public health practice and policy

undertake a comprehensive and critical review of available academic research evidence in area of public health. critically evaluate governments use of evidence. Discuss limitations and implications of research evidence. Make reference to cochrane reviews.
Brown B, Crawford P, Hicks C (2003)Evidence Based Research:Dilemmas and debates in health care.
Gomm R and Davies C (EDS)(2000) Using Evidence in Health and Social Care.
Keeping, C (2008)Practitioner Research. In Fraser S and Mathews S (2008) The Critical Practitioner in Social Work and Health Care.
Orme J (2007)Public Health for the 21st Century (2nd Edition).