Research interests Isotopic and trace element studies of diet and residential mobility in modern and archaeological humans and animals Fundamental and developmental aspects of isotope and trace element systems in bone, teeth and the environment It explored such topics as how enamel lead compositions of archaeological humans become culturally focussed following the widespread use of metals, differential diagenesis of enamel, dentine and bone and the potential of lead and strontium to identify migration to, and within, Britain. She has published her work in the journals of several disciplines: archaeological, biological, geochemical, geological and environmental. With various collaborators and students, Janet is currently working on a wide range of archaeological projects of humans and animals ranging in date from the Neolithic to the 19th century and funded by the NERC, AHRC, ESRF, Wellcome, British Academy, Royal Archaeological Institute, Royal Irish Academy, Leverhulme Trust, English Heritage and Historic Scotland. Of note is the Beaker People Project (PIs Profs. Parker-Pearson, Richards and Chamberlain) and The Gristhorpe Man Project which she co-directs with Nigel Melton. The Gristhorpe Man monograph was published in December 2013 by Oxbow.