Dr Jo Mackenzie is the Strategic Evaluation Lead in the Public Health team at Hertfordshire County Council.  She leads a team of Evaluation Officers who carry out a range of mixed methods intervention and service evaluations within Public Health and Adult Care Services.  Jo is a registered Health Psychologist and is keen to promote the importance of carrying out research and evaluation within local authorities. She is aware that local authorities are very different environments to universities and there are many challenges to implementing evidence based ways of working within local authorities.