Examination of footwear marks considers the reproduction of the sole, dimensions and individual wear or damage characteristics. A footprint and a mark left by a specific pair of shoes require different sets of comparison data.
Subject of examination
- Three-dimensional impressions and surface marks
- Representation of the sole pattern and individual defects
- Suspected footwear and comparison impressions
Sample questions for the expert
- Which part of the footwear left the mark and which features were reproduced?
- Is the mark suitable for identifying particular footwear?
- Do the mark's features correspond to the submitted sole?
- How do the surface, slippage and documentation quality affect the conclusion?
The final questions are formulated according to the objects and circumstances of the particular task.
What to prepare
- The item bearing the mark, a cast or scaled photographs
- The footwear to be examined in its preserved condition
- The procedural record and conditions of discovery of the mark
- Information about wear or changes to the footwear after the event
How the examination is conducted
The pattern, dimensional and specific features are compared in light of the reproduction mechanism. Possible distortions during movement and incomplete contact are considered separately.
Scope and limitations
A footwear mark cannot automatically establish the identity of the person who wore the footwear or the precise time of the event. Areas that were not reproduced must not be drawn in.
What the deliverable records
The conclusions distinguish class membership, individualising features and circumstances preventing a definite answer.
Cost and terms
from RUB 60,000. The exact cost depends on the number of objects, complexity of traces, need for comparative examinations or a site visit, urgency and the scope of the report.