Key takeaways
- ✓ Once police and forensics finish, cleaning the scene is the responsibility of the family or property owner, not law enforcement.
- ✓ Untreated blood and bodily fluids can spread contamination and transmit disease, so prompt, correct cleanup matters.
- ✓ A rushed or amateur cleanup can leave hidden contamination that puts everyone in the property at risk.
- ✓ Professional cleanup follows a clear process: assessment and planning, hospital-grade disinfection, safe biohazard disposal, and post-trauma support.
- ✓ Trained companies work to the ANSI/IICRC S540 trauma cleanup standard and hand the property back safe to live in.
What really happens after a crime scene is released
Few people have a clear picture of what happens at a crime scene beyond what television shows: officers securing the area, forensic specialists collecting evidence, investigators photographing every detail. What TV skips is the ending. Once the authorities have everything they need and release the scene, they leave — and the blood, bodily fluids and damage stay behind. In NSW, cleaning all of that up is the responsibility of the family of the deceased or the property's owner or occupier.
Why hire a professional crime scene cleaning company?
Cleaning a crime scene is not like any ordinary cleaning job, and doing it the wrong way puts both the person cleaning and everyone who lives in the property at risk. A few facts worth keeping in mind:
- ✓ Biological material left at a scene can spread contamination and carries the risk of transmitting infection if it isn't dealt with promptly.
- ✓ Blood and other bodily fluids must always be treated as potentially infectious — disease transmission is a genuine risk when they aren't handled quickly and correctly.
- ✓ A hasty or partial cleanup can leave hidden contamination in carpets, grout and subfloors, exposing occupants long after the visible mess is gone.
- ✓ Amateur cleaners without the right protective equipment and technique put their own health directly at risk.
Professional companies handle this hazardous work safely and cost-effectively, working to the industry's trauma cleanup standard (ANSI/IICRC S540) — and they hand your property back genuinely safe to live in, not just looking clean.
How is a crime scene cleanup done?
A proper cleanup runs through four stages, each done thoroughly before the next begins.
1. Scene assessment and planning
The first thing technicians do on arrival is inspect the entire site — not just the obvious areas — and map out exactly what has been affected. From there they build a cleanup plan. Where damage is extensive, materials that can't be fully decontaminated, such as saturated carpet, damaged furniture or sections of flooring, are identified for removal rather than risky salvage.
2. Disinfection with hospital-grade agents
Technicians then clean and disinfect every affected surface using hospital-grade cleaning solutions formulated to destroy the pathogens and contaminants present at trauma scenes. This is methodical work: every surface the contamination may have touched is treated, then verified, so nothing harmful is left behind.
3. Safe collection and disposal of biohazardous waste
All biological material and contaminated items are sealed into dedicated biohazard containers and removed from the property. From there the waste is transported and disposed of through the correct regulated channels — it can never simply go into household rubbish, because that would put waste handlers and the wider community at risk.
4. Post-trauma care and support
Good trauma cleaning companies understand they're working with people on one of the worst days of their lives. Beyond the physical cleanup, they support the family through the process — explaining each step, working discreetly, and helping with practical questions like insurance documentation and who is responsible for what after a death in NSW.
Need a hand in Sydney or Regional NSW?
In a distressing situation, let trained professionals carry the hazardous part. One Prime provides crime scene cleaning and trauma cleaning across Greater Sydney & Regional NSW, available 24/7. Call 1300 774 631 — we'll be there when you need us most.
Frequently asked questions
Who is responsible for cleaning a crime scene in NSW?
The family of the deceased or the property's owner or occupier — not the police. Once forensics have collected their evidence and the scene is released, law enforcement's job is done. Most families engage a professional trauma cleaning company rather than face the task themselves.
Why can't I just clean the scene myself?
Blood and bodily fluids must be treated as potentially infectious, and contamination often spreads further than the eye can see — into carpet underlay, grout and subflooring. Without professional PPE, hospital-grade disinfectants and correct disposal channels, you risk your health and can leave the property unsafe.
What are the steps in a professional crime scene cleanup?
Four stages: a full assessment and cleanup plan, disinfection of all affected surfaces with hospital-grade agents, sealed collection and lawful disposal of biohazardous waste, and ongoing support for the family throughout. Materials that can't be safely decontaminated are removed rather than salvaged.
How quickly should a crime scene be cleaned?
As soon as the scene is released. The longer biological material sits, the further contamination and odour penetrate porous materials, and the greater the health risk to anyone in the property. Reputable companies respond 24/7 for exactly this reason.
Sources & further reading
- NSW Police — Crime Scene Clean Up
- IICRC — ANSI/IICRC S540 Standard for Trauma and Crime Scene Cleanup
This article is general information, not medical or legal advice. Last reviewed 9 November 2018 by the One Prime Solutions team.