Photographs
Submit source files showing the overall view, trace position and detailed features, with a scale where possible.
Documents
Inspection reports, diagrams, procedural records, an investigative order or court ruling, and an existing report for review.
Physical items
Implements, footwear, locks, seals, clothing and other objects are transferred separately with a description of their condition and packaging.
Samples
Comparison specimens and information about their provenance are agreed for the specific task.
Form
The website form permits up to ten files of 10 MB each; large files and physical materials are arranged separately.