Understanding and managing the risks of dirty protests
By Jamie Woodhall, UK Technical & Innovations Manager, Rentokil Specialist Hygiene
While dirty protests are rarely discussed openly, for those working in hygiene and sanitation, such incidents represent a very real and complex biohazard that must be managed efficiently and discreetly.
A dirty protest is when a person intentionally urinates or defecates outside of designated sanitary facilities or spreads waste across the surfaces of a confined area. They are most commonly associated with law enforcement settings such as prisons or police cells, but also occur in other premises such as retail shops and hospitals, and public spaces.
While the term “dirty protests” may suggest a singular act of defiance, the reality of the motivation behind such incidents is more complex. Many cases are deliberate forms of protest or resistance, while others may be linked to underlying mental health challenges or substance misuse. Recognising this distinction is essential as it shapes both the immediate response and the longer-term management strategy, allowing organisations to move beyond reactive clean-up.
Facilities managers and those working in hygiene and sanitation must be properly informed on the risks and complexities of handling dirty protests so that incidents can be managed safely and premises can be returned to use as quickly as possible.
The importance of specialist biohazard management
Contrary to common assumptions, the risks associated with dirty protests extend beyond what is immediately visible. Bodily fluids such as faeces, urine, blood and vomit can carry a wide range of pathogens, including E. coli, Salmonella and Shigella, viruses such as Norovirus and bloodborne infections such as Hepatitis B and C. In custodial settings and other controlled environments where vulnerability, close contact and underlying health conditions may be more prevalent, this risk can be further increased.
Once introduced, these microorganisms do not remain on the surface. They can penetrate porous materials, settle in hard-to-reach areas, and form biofilms – protective layers that allow them to persist even after routine cleaning.
This means that standard cleaning, which focuses on visible cleanliness, is not sufficient. Incidents of this nature require specialist intervention and disinfection to eliminate pathogens at the microbiological level and safely remove hazardous materials to avoid contamination.
The challenge is compounded by aerosolisation, whereby contaminated material is disturbed during an incident or clean-up, and microscopic particles can become airborne. This increases the risk of inhalation and cross contamination. In these environments, appropriate personal protective equipment (PPE) is essential as it protects against surface and airborne exposure, particularly in enclosed spaces.
This means a structured, specialist response is always required for a dirty protest. Only then can the space be safely returned to use.
The risks associated with improper cleaning standards
Failure to properly manage a dirty protest can have serious consequences that extend beyond immediate cleanliness. Under COSHH regulations, employers have a legal duty to control exposure to biological hazards and ensure staff are appropriately trained. Failure to do so may expose workers to infection and result in breaches of duty of care.
The operational impact can also be significant. Areas affected by contamination often cannot be returned to use until they have been fully decontaminated and verified as safe. In environments where space is limited, and demand is constant – such as custodial settings, healthcare facilities and other controlled environments – this can quickly create wider operational pressures.
In some cases, contamination may extend beyond the initial site. Adjoining fixtures, ventilation systems and shared facilities such as bathrooms or washrooms may also require treatment, increasing downtime and resource requirements. Improper cleaning can also leave behind residual pathogens, turning a one‑off incident into a recurring operational and reputational challenge.
If not managed, the risks following a dirty protest are not confined to just contamination; they can extend to significant business disruption, which is particularly worrying in public sector facilities.
Building resilience
A truly safe, resilient business environment demands a proactive approach to dirty protests and training to ensure colleagues can recognise when specialist intervention is required.
It is also vital that businesses are prepared for the complicated and sensitive circumstances surrounding these incidents. This not only helps protect staff and customers but also ensures clean-ups can be turned around as quickly and effectively as possible to prevent wider operational impact.