Designing a forensic pathology facility: eight planning principles

A forensic pathology facility serves families in the worst week of their lives, the police and the courts, and a specialised clinical team. Its planning combines public health legislation, laboratory-grade containment, security and human dignity.

LEMEG Architects completed a research report on forensic pathology service (FPS) facilities as part of its healthcare work for a public-sector client. The report compares South African regulations and National Department of Health guidance with published international benchmarks. This article sets out the general planning principles that the published sources support. Project-specific findings are confidential to the project team and are not reproduced.

1. Start with the governing instruments

Forensic pathology services are a provincial health function. They moved from the South African Police Service to provincial health departments in 2006 and are governed by the National Health Act 61 of 2003 and the Regulations Regarding the Rendering of Forensic Pathology Service, 2018 (GN R359 of 23 March 2018). The earlier GN R636 of 2007 is the predecessor instrument.

The Infrastructure Unit Support Systems (IUSS) hospital mortuary guide excludes forensic pathology mortuaries from its scope. A hospital mortuary guide therefore cannot be applied to an FPS facility without checking what it covers.

2. Keep natural and unnatural deaths in separate facilities

The IUSS guidance states that natural and unnatural deaths should not be managed in the same facility unless the mortuary meets FPS staffing, infrastructure and operational requirements. A forensic facility on a hospital site is therefore planned as its own unit, with its own management, entrance and yard, and a clear boundary from the hospital mortuary.

3. Separate families from body-handling areas

Zoning is the main design decision. The public and family areas sit at the front of the building, away from receiving, post-mortem and storage areas. Guidance calls for a private service yard, no public sightlines into body areas and protected records. A mortuary is treated as a third-zone security area: staff only, with limited, authorised public access.

Families need a calm approach, a place to wait, and a viewing and identification arrangement that does not require them to enter the working areas. NHS England Health Building Note 16-01 recommends access to a memorial or peace garden.

4. Plan containment and clean-to-dirty flow from the first sketch

• Post-mortem areas for decomposed bodies are designated Biosafety Level 3 high containment in the IUSS guidance.
• Airlocks, interlocked doors and one-way staff changing sequences separate clean and dirty zones. Footwear is cleaned at transitions.
• Clinical hand basins with elbow taps are provided in every service area.
• The IUSS guidance requires biosafety exhaust terminating 3 m above roof level, or filtered exhaust.
• Waste is segregated at the point of generation in colour-coded containers, with labelling to SANS 10248-1 and a register for anatomical waste.
• Commissioning includes airflow, pressure, interlock, filter-integrity, refrigeration alarm and drainage tests, ideally with independent approval.

5. Test room sizes against the published benchmarks

The IUSS guide gives 27 m² per autopsy room. The Australasian Health Facility Guidelines (AusHFG) give 30 m², and the NHS England HBN 16-01 benchmark is used for comparison. Where a design falls below a reference area, the deviation is motivated and recorded rather than left unexplained. The IUSS guides apply to all new public-sector health building projects, and deviations must be motivated.

6. Design for security and chain of custody

The 2018 regulations require access to bodies, records, post-mortem areas and storage to be limited to authorised persons, with logs of body and file removals. The IUSS guidance recommends combined tag and biometric access control rather than a card or tag alone, door closers, timed door alarms and lockable cabinets. AusHFG requires CCTV for coronial cases.

7. Plan for the people who work there

The US National Institute of Justice reports that 4 in 10 medicolegal death investigators have moderate to high stress and nearly half report symptoms of depression. HBN 16-01 recommends daylight wherever possible. Staff rooms with daylight, views and access to outdoor space are a design response to that evidence, together with proper change rooms, lockers and a rest room.

8. Provide for surge and mass-fatality events

The 2018 regulations require SAPS to notify the service of mass disasters. HBN 16-01 favours identified temporary surge space over permanent oversizing, and UK Human Tissue Authority guidance prohibits more than one body per tray and unrefrigerated storage. PAHO, WHO and ICRC guidance states that a refrigerated container holds up to 50 bodies and that 2–4 °C is the best temperature option. A hardstand beside the receiving yard with power, drainage and screening allows refrigerated containers to be added when needed.

What this means for a client

A forensic facility is a brief that must be settled early: the governing regulations, the relationship to the hospital, the containment level and the security regime all change the plan. LEMEG’s research approach is to establish those facts from published sources first, identify the points that need client confirmation, and carry them as open items until they are resolved.

Sources

• National Health Act 61 of 2003.
• Regulations Regarding the Rendering of Forensic Pathology Service, 2018, GN R359, Government Gazette 41524, 23 March 2018.
• National Department of Health, Infrastructure Unit Support Systems (IUSS) health facility guides, including the Hospital Mortuary Services guide.
• Australasian Health Facility Guidelines (AusHFG), Mortuary/Autopsy.
• NHS England, Health Building Note 16-01; UK Human Tissue Authority guidance.
• PAHO, WHO and ICRC, Management of Dead Bodies in Disaster Situations.
• US National Institute of Justice, reporting on stress among medicolegal death investigators.
• SANS 10248-1 (health care waste labelling); SANS 10400 (building regulations).