McNeill is a Council member of Action on Smoking and Health and is a trustee of the Society for the Study of Addiction and of Tobacco Free Futures.
[3] McNeill then worked in a quasi-governmental agency and as a freelance consultant whilst holding honorary academic positions at St George's Hospital Medical School[4] and University College London.
[2] Having published extensively in the field of smoking and tobacco control, McNeill has authored over 250 publications including original research, editorials and commentaries; she has co-authored books, and acted as editor or guest editor on journal supplements.
[5] She is the lead author of a 2015 report E - cigarettes: an Evidence Update commissioned by Public Health England.
McNeill was also the Scientific Coordinator for the Analysis of the Science and Policy in Europe for the Control of Tobacco European Commission Project (2004 - 2006).