CDM Asbestos Failures: The Principal Contractor Can Be Prosecuted Personally

A Staffordshire prosecution concluded in March 2026 with a result that every principal contractor and site manager in the UK needs to understand: the site manager was prosecuted personally alongside the company for asbestos management failures.

This is not a company-level penalty that can be absorbed by limited liability. It is a personal criminal prosecution — and it carried the risk of unlimited fines and imprisonment.

Here is exactly what happened, what regulation was breached, and what every construction firm must have in place today.

---

The Staffordshire Prosecution — What Happened

On 9 March 2026, HSE concluded a triple prosecution arising from a single demolition and refurbishment project in Staffordshire.

Three parties were prosecuted:

1. The principal contractor — for failing to verify contractor competence under CDM Regulation 4
2. The appointed asbestos contractor — for undertaking licensed asbestos removal work without a valid licence
3. The site manager personally — for failing in their duty to prevent unlicensed asbestos work

The site manager's personal prosecution is the critical element here. The site manager sought to rely on the fact that the asbestos contractor was engaged by the principal contractor company, not by them personally. HSE rejected this argument.

The principle applied: a site manager who is a duty-holder under CDM cannot hide behind the corporate veil when they personally directed or permitted non-compliant work to proceed.

---

CDM Regulation 4: The Duty That Creates Personal Liability

CDM Regulation 4 places duties on clients, designers, principal designers, principal contractors, and contractors. The duty most relevant to this case is:

"When appointing or engaging a contractor, the client, designer, or contractor must take reasonable steps to satisfy themselves that the contractor has the skills, knowledge, experience, and, where relevant, the organisational capability to carry out the work in a way that secures health and safety."

This duty to verify competence applies to:

• The company as principal contractor
• The site manager acting as the principal contractor's representative on site

The Staffordshire prosecution established that where a site manager exercises personal authority over which contractors proceed with work, they personally hold the CDM duty to verify competence.

---

The Asbestos Layer: Why This Matters Even More

Asbestos is the one area of construction health and safety where prosecutions are almost automatically personal. This is because:

1. The licensed contractor requirement is absolute

The Control of Asbestos Regulations 2012 requires that licensed asbestos removal work can only be carried out by an HSE-licensed contractor. There is no discretion. There is no "we didn't know they were unlicensed" defence once you have failed to check.

2. The asbestos survey is not optional

Before any demolition or refurbishment work on a building constructed before 2000, an asbestos refurbishment and demolition survey is legally mandatory. This survey must be completed before work begins — not during it, not when asbestos is discovered.

The most common failure mode: a survey is commissioned but the results are not distributed to all contractors before work begins. Labourers are drilling into asbestos-containing materials while the survey sits in a project manager's inbox.

3. Fines are unlimited

HSE asbestos prosecutions in 2025–2026 have resulted in fines ranging from £74,900 (two firms, March 2026) to significantly higher amounts for larger contractors. There is no cap on the fine amount. For site managers prosecuted personally, the fine is paid from personal assets.

---

The Five CDM Asbestos Failures HSE Finds Most Often

Based on HSE enforcement data, these are the most common CDM asbestos failures in UK construction:

1. Failing to verify the asbestos contractor's licence

HSE maintains a public register of licensed asbestos contractors. Verification takes approximately 90 seconds. Skipping this check is the most common single failure in prosecuted cases.

Fix: Add HSE licence verification as a mandatory step in your contractor onboarding process. Screenshot and save the confirmation.

2. Distributing the asbestos survey to some but not all contractors

The principal contractor has a CDM duty to pass the pre-construction information — including asbestos survey results — to all contractors before they start work. A survey that reaches the project manager but not the groundwork subcontractor is a CDM failure.

Fix: Create a documented distribution list for pre-construction information. Require signed acknowledgement from each contractor.

3. Proceeding with demolition or refurbishment without a completed survey

Pressure to start on site, combined with a survey that is delayed or in progress, is the common scenario. Starting before the survey is complete is a direct breach of CAR 2012.

Fix: The survey completion date is a hard dependency for site start. It belongs in your project programme.

4. Relying on a management survey for refurbishment and demolition work

A management survey identifies and manages asbestos in place. A refurbishment and demolition (R&D) survey is a more intrusive survey required before any work that may disturb building fabric. Using a management survey when an R&D survey is required is a breach.

Fix: Review your survey type against the scope of work before every project.

5. No documented HSE notification for licensed work

Licensed asbestos removal work requires prior notification to HSE. If your contractor is licensed but has not notified HSE for the specific job, both they and you (as principal contractor) face liability.

Fix: Request a copy of the HSE notification before licensed asbestos work begins.

---

What "Personal Criminal Liability" Means in Practice

For site managers reading this: personal prosecution means:

• The fine comes from your money, not the company's
• If the company enters administration or wind-up, your prosecution continues independently
• A criminal conviction affects future employment in construction permanently
• Prison is a sentencing option for wilful or serious breaches — particularly where an asbestos exposure results in injury or death

The Staffordshire case did not result in a prison sentence. That is not always the outcome.

---

The Monitoring Problem for Construction Firms

HSE updates its CDM guidance, asbestos regulations, and enforcement priorities through multiple channels. RIDDOR obligations change. HSE prosecution statistics reveal which failures attract the most scrutiny.

Most construction SMBs rely on their trade association newsletters and word of mouth to stay current. By the time a notable prosecution reaches the industry via informal channels, several more firms have already made the same mistake.

ComplianceAlert monitors HSE, CDM guidance updates, Environment Agency construction requirements, and asbestos regulation changes. You receive a plain-English alert the day something changes — not weeks later.

Free 7-day trial — no credit card required: compliancealert.co.uk/construction

Not sure where your firm stands? Take our free Compliance Score quiz: compliancealert.co.uk/compliance-score

---

TL;DR: What Every Principal Contractor Must Have in Place

• ✅ Verify every asbestos contractor against the HSE public register — mandatory, takes 90 seconds
• ✅ Commission an R&D survey before demolition or refurbishment on any pre-2000 building — not a management survey
• ✅ Distribute survey results to all contractors before site start — documented with signed acknowledgement
• ✅ Require HSE notification copies before licensed asbestos work begins
• ✅ Train your site managers that CDM duties are personal — the company's limited liability does not protect them

The Staffordshire prosecution did not involve a rogue contractor being caught at random. It involved a failure in a documented process. That is exactly the kind of failure that compliance monitoring prevents.

---

ComplianceAlert monitors HSE, CDM guidance, and asbestos regulatory changes for UK construction businesses. Start your 7-day free trial at compliancealert.co.uk.

---