Cambridge Research Proposal Example: Chemical technician to hazardous substances policy (Score 93)

UK hazardous substances regulation operates across two partially disconnected systems: the Control of Substances Hazardous to Health Regulations 2002 (COSHH) and the REACH-derived retained framework following the UK's departure from the EU. Both systems set occupational exposure limits (OELs) and classification thresholds, yet neither framework specifies a consistent methodology for translating quantitative toxicological or epidemiological evidence into binding regulatory limits. The Health and Safety Executive's EH40 document publishes Workplace Exposure Limits, but the evidentiary basis for individual limit-setting decisions is not standardised across substance classes, and the relationship between the scientific record and the legal threshold is often opaque. This proposal asks: by what legal and procedural mechanisms do UK regulatory bodies translate quantitative hazard evidence into occupational exposure limits, and where do those mechanisms produce limits that are poorly calibrated to the available scientific record? A secondary question follows: what institutional design features in comparable jurisdictions — specifically Germany's MAK Commission process and the EU's Scientific Committee on Occupational Exposure Limits (SCOEL) — produce more transparent evidence-to-threshold pathways, and what would adoption of analogous features require under UK administrative law? The practical stakes are not abstract. Approximately 13,000 deaths per year in Great Britain are attributed to occupational lung disease and related conditions caused by past exposures to hazardous substances (HSE annual statistics). A regulatory framework that cannot articulate how it weighs evidence is also a framework that cannot be systematically challenged, updated, or held accountable. The research question is therefore both a question about regulatory design and a question about the rule of law in technical standard-setting. Two bodies of scholarship are directly relevant, and they rarely speak to each other. The first is the regulatory science literature on OEL methodology. Researchers including Deveau et al. and Bolt and Huici-Montagud have examined how benchmark dose modelling, uncertainty factors, and epidemiological weighting differ across national and supranational systems. This literature is technically precise but largely descriptive: it documents variation without analysing the legal or procedural structures that produce it. It treats the regulatory output — the limit — as a scientific object rather than a legal one. The second body is administrative and regulatory law scholarship on scientific uncertainty. Work in the tradition of Jasanoff's co-production thesis, and more recently scholarship on the juridification of risk regulation by Fisher and others, examines how legal institutions manage expert knowledge. This literature is analytically strong on institutional design but rarely engages with the specific evidentiary mechanics of chemical exposure standard-setting. It tends to treat OELs as an example of a broader category rather than examining the substance-specific evidentiary record. The gap is methodological and institutional: there is no sustained analysis of how UK administrative law structures — notice-and-comment analogues, HSE advisory committee procedures, judicial review standards for technical decisions — either enable or constrain the incorporation of quantitative risk evidence into binding limits. Post-Brexit, this gap has widened, because UK REACH and COSHH now diverge from EU processes without a clear domestic replacement for SCOEL's structured evidence-review function. This proposal addresses that gap directly. The research design has three phases, each building on the last. Phase one is a systematic regulatory document analysis. I will select a purposive sample of approximately fifteen to twenty substances for which EH40 WELs were set or revised between 2010 and 2024, prioritising substances where the HSE's own technical basis documents are publicly available and where SCOEL or MAK opinions also exist for the same substance. Selection criteria will include: substances with contested OELs in the peer-reviewed literature, substances reclassified post-Brexit, and at least two substances from different hazard classes (respiratory sensitisers, carcinogens, systemic toxicants) to test whether evidentiary treatment varies by classification category. For each substance, I will code the HSE technical basis document against a structured framework covering: the evidence types cited, the quantitative methods used (if any), the uncertainty factors applied, and the stated rationale for the final limit. The same coding framework will be applied to the corresponding SCOEL and MAK documents, enabling a structured cross-jurisdictional comparison. Phase two is legal and procedural analysis. Using the coded dataset from phase one, I will examine the administrative law architecture that governs each stage of the UK limit-setting process: the role of the WATCH committee, the legal status of EH40 under COSHH, the availability and scope of judicial review for limit-setting decisions, and the extent to which Freedom of Information requests have historically produced or been denied access to underlying technical assessments. This phase draws on primary legal sources — statutory instruments, committee minutes, FOI decision notices, and relevant case law — rather than secondary commentary alone. Phase three synthesises the findings into a set of institutional design proposals. Drawing on the comparative material from phase one and the legal analysis from phase two, I will evaluate whether specific reforms — a structured evidence protocol analogous to SCOEL's methodology document, a statutory duty to publish quantitative basis documents, or enhanced standing for judicial review of limit revisions — are compatible with existing UK administrative law and would be feasible within the HSE's current institutional capacity. The method is deliberately document-based rather than interview-based. This is a deliberate scope decision: the research question concerns the publicly available regulatory record, and the contribution is an analysis of what that record does and does not show. Interviews with HSE officials or industry toxicologists would add a different kind of evidence — about informal practice and institutional culture — but would also require ethics approval timelines and access negotiations that are uncertain at MPhil level. The document-based design is achievable within twelve months and produces a replicable analytical framework that could be extended in doctoral work. All primary sources for phases one and two are publicly available. EH40 and HSE technical basis documents are published on the HSE website. SCOEL opinions and MAK documentation are freely accessible through EU OSHA and the DFG respectively. COSHH statutory instruments, WATCH committee minutes, and relevant FOI decision notices are available through legislation.gov.uk and the ICO decision database. No institutional data access agreements are required. The principal feasibility risk is document availability: not all EH40 entries have published technical basis documents, and some pre-2015 WATCH minutes are incomplete. The contingency is to adjust the substance sample toward entries with fuller documentation rather than forcing analysis of substances where the evidentiary record is too thin to code reliably. A secondary risk is scope creep in the comparative analysis; I will manage this by treating the German and EU comparators as reference points for institutional design features rather than conducting a full parallel analysis of each system. Ethics review is not required for document analysis of publicly available regulatory materials. No human participants, personal data, or confidential organisational information are involved. Provisional timeline: months one to three, literature review completion and coding framework development; months three to seven, phase one document analysis and coding; months seven to ten, phase two legal analysis; months ten to twelve, synthesis, drafting, and revision. The Cambridge Faculty of Law houses research in regulatory law, administrative law, and the governance of risk that is directly relevant to this project. Published work within the Faculty on the legal dimensions of risk regulation and on the administrative law of technical standard-setting provides the scholarly context within which this proposal sits. The Faculty's access to Westlaw UK, Lexis+ UK, and EUR-Lex covers all the primary legal sources required for phase two. The Cambridge library system provides access to the toxicological and occupational health journals needed for phase one. The project sits at the intersection of regulatory law and the governance of scientific evidence — a combination that the MPhil in Law and Regulation is specifically structured to support, given its emphasis on law operating in technically complex domains. My background in chemistry and occupational chemical analysis means I can read and critically assess the toxicological basis documents in phase one without relying on secondary summaries, which is a genuine methodological advantage for a project where the gap between the scientific record and the legal threshold is precisely what is under examination. The MPhil year will allow me to develop the legal analytical skills to match that technical foundation, producing a research design that neither a pure lawyer nor a pure scientist would be well-placed to execute alone.