Planning and developing a method for collecting ground truth data relating to footwear mark evidence

Area of Science:

• Forensic Science
• Data Management

Background:

• Ground Truth Data is essential for quality assurance and accreditation in forensic science.
• The Forensic Science Regulator mandates testing against ground truth data for specific forensic processes.
• Collected data must form a meaningful dataset for relevant tests and end-user information.

Purpose of the Study:

• To detail the planning and development of a ground truth data collection method for footwear mark evidence.
• To outline the materials, variables, and evidence-based decision-making processes involved.
• To provide recommendations for other forensic units to collect relevant jurisdictional data.

Main Methods:

• A UK forensic unit developed a specific method for collecting ground truth data.
• Consideration of relevant materials and variables was integral to the method's design.
• Evidence-based decision-making guided the development process.

Main Results:

• A method for collecting ground truth data for footwear mark evidence was successfully developed.
• The process involved careful consideration of materials, variables, and decision-making.
• Recommendations are provided to facilitate the creation of a national dataset.

Conclusions:

• The developed method provides a framework for collecting valuable ground truth data.
• Standardization can facilitate the creation of a large and relevant national dataset.
• This approach supports quality assurance and accreditation in forensic science.