ROOT CAUSE
PROTOCOL

INCIDENT: NORTH SIDE ARSON, 1987

DATE
August 14, 1987
LOCATION
Chicago North Side
Grid Sector 7-Gamma
ERROR TYPE
Chain of Evidence Break
Vial Mislabeled
CONSEQUENCE
Case Dismissal
Perpetrator Released
Laboratory microscope analyzing evidence samples

CHAIN SEQUENCE FAILURE POINT

01
COLLECTION
Soil sample extracted from burn perimeter
02
LABELING
FAILURE: Case number transposed (7G → G7)
03
TRANSPORT
Sample moved to Central Lab, unverified
04
ANALYSIS
Results filed under wrong case file
05
ADMISSION
Evidence ruled inadmissible

CORRECTIVE PROTOCOL v1.0

  • ✓ TRIPLE-VERIFY LABELING
    Each vial requires three independent signatures before transport authorization
  • ✓ BARCODE CHAIN-OF-CUSTODY
    Digital verification at each handoff point, immutable timestamp logging
  • ✓ CROSS-REFERENCE VALIDATION
    Automated case number checksum against physical sample matrix
  • ✓ ZERO-SLIP CULTURE
    Mandatory incident review for all personnel quarterly
"The system didn't fail because the technology was inadequate.
It failed because the human element assumed perfection.
We build redundancy not to prevent errors—we assume they will come—but to survive them."