Crime Scene Management: Applied Scenarios and Casework Decision-Making

This medium-level mock moves beyond definitions into applied scenarios and casework decision-making — requiring students to select the right action, sequence, or approach for realistic crime scene situations. Every question is pitched at the application level.

Questions cover: selecting the right search pattern for a large outdoor scene (grid vs strip resource allocation), FRO response to a disturbed scene (document disturbances; do not abandon), GSR collection timing urgency (shed by activity; collect before any hand contact), staged crime scene examiner response (document all evidence + note staging indicators; do not declare staging), triage at a scene with competing time-critical evidence (suspect hands vs biological evidence in rain), cast-off bloodstain pattern significance (number of blows, weapon direction, victim position), adapting the examination sequence to rain (transient evidence first), independent assessment after FRO briefing (use briefing as context not as limitation), hit-and-run vehicle examination sequence (document in situ then exterior then interior), documenting a moved exhibit (current + original position; note in report), fibre collection from clothing (package whole garment in paper; lab examination), CCTV evidence securing at the scene (request preservation + document camera positions + note time discrepancies), area of origin in fire investigation (V-patterns, char depth, lowest burn point), biological hazard scene approach (identify hazard + correct PPE + decontamination), touch DNA collection procedure (moistened swab + air dry + paper + double swab), negative evidence significance (absent expected evidence = gloves, wiping, or activity did not occur), submerged vehicle examination (document in situ + water samples + exterior first), IO-directed examination limitation (examine indicated area plus systematic full scene), scene court documentation requirements (report + photographs + sketch + evidence log + attendance log), limited specialist resource management (zone + triage + prevent cross-contamination), legitimate prior access examination (collect all + note access-consistent vs access-inconsistent areas), improperly packaged biological evidence at FSL (repackage immediately + document + flag in report), forensic report objectivity (duty to court not prosecution), gloved offender evidence strategy (discarded gloves + surface DNA + glove trace + negative fingerprint evidence), drug laboratory scene adaptation (hazard assessment + chemical PPE + ventilate + document first), triangulation reference point error consequences (all referenced measurements also incorrect; revisit required), examiner independence under IO pressure (refuse premature conclusion; duty to evidence), multiple simultaneous active scenes (triage by perishability + separate dedicated teams), exhibit with no chain of custody at FSL (refuse examination; return for proper documentation), floor and wall bloodstain documentation strategy (plan view + elevation photographs + measurements + BPA specialist coordination).

Topics covered:

• Scene triage and resource allocation: search pattern selection, competing time-critical evidence, limited specialists, multiple scenes
• Examiner objectivity: staged scenes, IO pressure, FRO briefing independence, report objectivity
• Evidence-type specific approaches: GSR, touch DNA, fibres, CCTV, bloodstain patterns, glove evidence, negative evidence
• Documentation scenarios: disturbed scenes, moved exhibits, floor and wall blood, CCTV, submerged vehicles
• Scene adaptations: rain conditions, biological hazards, drug laboratories, submerged vehicles, infectious disease
• Chain of custody: documentation failures, improper packaging, retroactive log entries

Each question cites Saferstein's Criminalistics and BNSS 2023 provisions. Allow 30 minutes.