QUALITY CONSULTANCY
Building quality and reaching standards

EXPERT TRAINING
Developing knowledge and expertise

CRIMINAL DEFENCE
Help, advice and quotations provided
Firearms & GSR – We offer a complete firearms and gunshot residue (GSR) service enabling all of your casework, quality and training requirements.
Toxicology – We can offer a national and international consultancy covering toxicology and drugs-related matters
BPA – We offer BPA consultancy covering a range of training needs and casework related matters
DNA – A complete range of DNA casework services from test strategy to evidence interpretation.
Marks – We offer a complete marks and traces service covering all of your casework, training and quality requirements.
Quality – A complete range of services to ensure that your outputs reach and maintain the highest standards of quality
Bodyfluids – Our services encompass the complete range of body fluids including location, identification, DNA analysis and evaluation.
Questioned Documents – We offer a full forensic documents examination service for criminal prosecution and defence casework and civil work
Blood Marks – We provide a service enhancing and interpreting fingermarks and shoemarks at crime scenes or in the lab.
Fire Investigation – We provide scene and laboratory-based fire and explosion investigations

Who We Are…

Principal Forensic Services (PFS) Ltd was created following the closure of the UK’s Forensic Science Service. It is led by world renowned experts with over 300 years combined experience, who have worked on some of the most challenging cases and major innovations in forensic science.

PFS offers services across all of the forensic science disciplines commonly encountered in criminal or civil investigations and in the evaluation of evidence. We have global experience of providing independent expertise to all parties within criminal justice, including expert witness testimony commissioned by both prosecution and defence. Quality, rigour and impartiality are central to all PFS work.

Alongside casework, PFS offers bespoke training across the spectrum of forensic science, and advice on attaining quality accreditation and enhancing quality standards. PFS scientists have led development of many aspects of the Forensic Science Regulator’s Codes of Practice, and can assist with embedding quality across the forensic process, method validation and the successful introduction of innovation and novel forensic science into the criminal justice system.

Latest News

Profiles Of Our Experts

Angela Shaw

Leading expert in the field of Gunshot Reside (GSR), particularly in relation to complex interpretative issues.

Mark Mastaglio

Mark is a leading firearms forensic scientist having worked on complex cases in the UK and across the globe.

Mike Scott-Ham

As a forensic toxicologist Mike is well-placed to provide advice on many aspects of casework involving drugs and alcohol

Gillian Leak

Gillian is a recognised expert in the field of blood pattern analysis (BPA) and has provided testimony in hundreds of cases.

Sue Pope

Sue specialises in the interpretation of DNA profiles specifically the statistical evaluation of complex DNA results.

Mike Barber

A leading DNA expert and highly skilled provider of balanced expert opinion to defence and prosecution teams.

Kevin Sullivan

Kevin is a widely recognised forensic scientist with extensive experience in R&D, validation and quality management.

Julie Allard

Julie is a widely published expert specialising in body fluids, particularly in the area of sexual offences.

Jonathan Whitaker

A highly experienced and respected leading DNA  expert supporting the defence and other partners in the Criminal Justice System.

Dave Baldwin

David is a widely acknowledged expert on marks and traces and has undertaken examinations for the UN and FBI.

Iain Peck

Iain is a nationally renowned expert in fire and explosion investigation, and has been involved in many high profile cases.

Anthony Stockton

Anthony is an authority in the forensic examination of questioned documents and the comparison of handwriting.

Ian Evett

Ian specialises in the application of statistics, probability and logic to the evaluation of scientific evidence.

Our Services