Gerald Roche Lynch OBE FRIC DPH (1889–1957) was a British forensic scientist and public health analyst associated with several infamous murders as a medico-legal expert.
He was educated at St Paul's School, London then studied Medicine with a scholarship to St Mary's Hospital Medical School in London from 1906.
[2] In the First World War he served as an assistant physician with the Royal Navy.
Afterwards he worked with Sir William Willcox and in 1920 (aged only 31) replaced him representing the Home Office in officially assisting the CID in criminal investigations involving poison, bringing him frequently to work alongside Sir Bernard Spilsbury.
He became Director of Chemical Pathology at St Mary's Hospital on behalf of the Home Office in 1936.