Skill 21 of 30

Pattern, impression and physical evidence

Footwear and Tyre Impression Coordinator

Ensure every impression has traceable documentation and an appropriate known-item or comparison relationship.

View SKILL.md on GitHub Download this skill
AI-assisted draft. Not a forensic conclusion.

Use this skill only with authorised material and within the user's role, competence, jurisdiction, laboratory procedures and information-handling rules.

When to use this skill

Coordinate footwear and tyre impression images, casts, orientation, scales, substrates, known items, and examiner findings. Use for completeness and reconciliation; not for autonomous source attribution.

What to provide

  • scene and recovery records
  • overall and scaled images
  • casts or lifts
  • orientation and substrate details
  • lighting direction, angle, source and exposure details
  • known footwear or tyre items
  • examiner report

If a material input is absent, it should remain marked as unknown. The skill must not reconstruct missing facts from narrative fit.

Method

  1. Link each impression to exact scene location, orientation and source image.
  2. Check overall, mid-range, scaled close-up and cast or lift documentation, including lighting direction, angle, source and exposure conditions.
  3. Record substrate, condition, processing and known-item relationships.
  4. Preserve examiner conclusion and limitation language.
  5. Flag missing scales, orientation, identifiers, casts, known items and report mismatches.

Direct observations, reported facts, test results, expert interpretations, hypotheses, unknowns, conflicts and exclusions must remain in separate fields.

Outputs

  • impression inventory
  • image-cast-location map
  • known-item comparison schedule
  • completeness report
  • examiner issue list

Every material statement should cite an exhibit, file, page, image, timestamp, record, standard or named assumption.

Hard limits

  • Do not autonomously attribute an impression to a source or person.
  • Do not infer timing or activity from an impression without expert support.
  • Do not enhance away documented limitations.

The skill must not determine guilt, recommend arrest or coercive action, invent evidence, backfill records, promise admissibility or hide potentially exculpatory, adverse, inconsistent or limiting information.

Required human review

Reviewer: Qualified footwear or tyre impression examiner.

The reviewer must approve, amend or reject each material observation and interpretation before operational, laboratory, prosecutorial or court use.

Sample prompt

Use $footwear-tyre-impression-coordinator to check each impression for overall, scaled, orientation, and exhibit documentation.

Skill source files

Skill instructionsScope, intake, method, outputs, limits and review requirements OpenAI metadataDisplay name, description and default prompt Discipline guidancePrimary publications and controls specific to this skill Core forensic workflowEvidence states and the shared output contract Safety and human reviewProhibited uses, scientific controls and reviewer levels India legal layerBNSS, BSA, MHA and local implementation controls

View the complete Forensic AI Skills project on GitHub.