Reality Check: Forensics & Toxicology Laboratory Workflows in Pakistan
Forensics and toxicology laboratories in Pakistan operate under legal, judicial, and medico-legal pressure where laboratory processes are scrutinized as closely as analytical results. While SOPs describe controlled evidence handling and testing workflows, actual day-to-day operations are shaped by case backlogs, manual custody tracking, and court-driven timelines.
This reality check explains how forensic and toxicology laboratories actually function on the ground.
Evidence Intake Is Case-Driven, Not Batch-Driven
Forensic laboratories receive evidence as part of individual legal cases, not production batches.
Evidence arrives from:
- Police departments
- Courts
- Hospitals and medico-legal officers
Evidence includes:
- Biological specimens (blood, urine, tissue, viscera)
- Seized substances (narcotics, poisons, alcohol)
- Trace materials and exhibits
In many Pakistani labs:
- Evidence intake is logged manually
- Seal condition is recorded in writing
- Case details are captured across multiple registers
Under backlog pressure, evidence identity and documentation accuracy become early risk points.
Chain-of-Custody Depends on Paper, Not Visibility
Chain-of-custody is central to forensic operations, yet in practice:
- Custody logs are paper-based
- Transfers between storage, analysis, and reporting rely on signatures
- Timestamps are recorded manually
Evidence movement is often not visible in real time, making later reconstruction difficult if custody is questioned in court.
Multi-Specimen, Multi-Method Complexity
Forensic and toxicology labs handle multiple specimen types per case.
Each requires:
- Different preparation protocols
- Different analytical methods
- Different Instruments
Common techniques include:
- GC-MS and LC-MS/MS
- ICP-MS for metals
- FTIR and UV-Vis
- Immunoassays
In practice, method assignment and tracking rely on technician experience and case notes, increasing dependency on individuals rather than systems.
Instrument-Centric Analysis, Fragmented Records
Analytical instruments operate independently. Raw data is:
- Printed
- Stored in local instrument software
- Manually transcribed into reports
Linking raw data to:
- Specific evidence items
- Case numbers
- Chain-of-custody records
is often a manual exercise, increasing legal risk.
Reporting Is Court-Driven and Time-Sensitive
Forensic reports are legal documents. Delays or inconsistencies can:
- Affect court proceedings
- Trigger legal challenges
- Damage laboratory credibility
Reports are often reviewed under pressure, and corrections may be made quickly, sometimes without complete documentation of:
- What changed
- Why it changed
- Who authorized the change
Why This Reality Persists
This workflow persists because:
- Case inflow is unpredictable
- Backlogs are common
- Staff rely on experience to maintain continuity
- Audits and court reviews are reactive
However, this dependence on individuals rather than enforced workflows increases risk as case volume grows.
Forensic and toxicology laboratories in Pakistan are legally exposed environments. Daily operations succeed through manual diligence rather than system-enforced control. As workload and scrutiny increase, this model becomes fragile, especially when evidence defensibility is challenged in court.
Understanding this reality is essential before examining failure points, regulatory expectations, or workflow alignment.