David Jarratt-Knock BSc (Hons), MCSFS
Forensic Chemist since 1999
 
A scientist since 1999, David is a highly experienced forensic scientist specialising in footwear, tyre tracks, other impressed marks, and alcohol technical defence. He has worked as a forensic expert in both public and private sectors, and has reported on hundreds of cases for both the prosecution and the defence. He has given expert evidence on numerous occasions in Crown and Magistrates courts across the United Kingdom.

David Jarratt-Knock

Forensic chemistry

Shoe prints and footwear mark comparison

Tool and manufacturing marks

Trace evidence
Highly experienced expert in footwear marks casework, including complex cases such as those involving injury marks on bodies.

Highly experienced expert in alcohol technical defence (ATD) casework; performing and reporting on calculations relating to blood and breath alcohol concentrations of those involved in Road Traffic offences (back calculations, hip flask or statutory defences, laced drinks).

Expert in tyre track evidence, glove marks, tape comparisons and physical fits

David has delivered many hundreds of cases across all disciplines for police and the defence

Designed and delivered training programmes to police and internal staff

Experience of forensic procurement programmes

BSI-trained quality auditor, having carried out numerous audits across a range of forensic disciplines to support ISO 17025 accreditation in both public and private sector laboratories.
Member of Skills for Justice Working Group on National Occupational Standards in forensics

Member of AFSP Working Group on Case Assessment and Interpretation

Member of the Chartered Society of Forensic Sciences, and the International Association for Identification

Registered Forensic Practitioner in footwear marks for the Council for the Registration of Forensic Practitioners (CRFP), prior to the closure of CRFP in 2009.

David Jarratt-Knock

Expertise

Notable work

Notable cases

Experience

Committee Memberships