Since finishing my PhD I have worked to develop and apply mathematical/statistical/computational methods and ideas in genetics. I have contributed to aspects of population, evolutionary, medical and forensic genetics. In forensic genetics, my principal contribution has been to develop methods to allow for coancestry effects in the interpretation of DNA profiles. Match probability formulae incorporating coancestry coefficients are often called the "Balding-Nichols formulae" following our 1994 paper. More recently I have developed methods for the interpretation of low template DNA profile evidence, initially in collaboration with John Buckleton of ESR New Zealand (2009 paper).