Almost everything HR does sits on top of employment law. You don’t need to memorise the statutes — but knowing the big pieces explains why HR is so careful about process, paperwork and fairness. Here are the ones that come up most.
01 · The starting pointThe contract of employment
The moment someone accepts a job, a contract of employment exists — and it’s legally binding. It sets out pay, hours, holiday, notice and duties. A lot of HR’s care around wording and paperwork is because this document decides what both sides are actually entitled to.
02 · Fairness, by lawThe Equality Act 2010
This is the big one. It makes it unlawful to treat people unfairly because of a protected characteristic — things like age, disability, sex, race, religion or sexual orientation. It’s why job adverts, shortlisting and decisions have to be based on the role, not the person’s background.
- Direct discrimination — treating someone worse because of a protected characteristic.
- Indirect discrimination — a rule that looks neutral but disadvantages a group.
- Reasonable adjustments — changes an employer must make so a disabled person isn’t disadvantaged.
03 · People’s dataGDPR
HR holds sensitive personal information — addresses, bank details, health records. GDPR (the UK’s data protection rules) says that data must be kept accurate, secure, and only used for the reason it was collected. It’s why you can’t just email someone’s personal details around the office.
04 · Time and payWorking hours and the minimum wage
The law sets floors that protect workers: a National Minimum / Living Wage, paid holiday, rest breaks, and limits on weekly working hours. HR makes sure rotas, contracts and pay all stay the right side of these.
05 · Safe at workHealth, safety & wellbeing
Employers have a legal duty to keep people safe at work — the same world Watkins’ HSEQ team lives in. HR works alongside that: making sure risks are managed, incidents are handled properly, and people’s wellbeing is taken seriously, not just their physical safety.
06 · Process is protectionDisciplinaries & grievances
When there’s a problem, following a fair, consistent process isn’t red tape — it’s what protects both the employee and the company. There’s national guidance (the ACAS Code) on doing this properly, and skipping it is how organisations end up at an employment tribunal.
Policies are just the law, translated. When you read a company’s HR policies, you’re mostly reading its plain-English version of these legal duties — written so everyone knows what to expect and everyone gets treated the same way.
So…Why HR is so careful
Now the caution makes sense. Behind the paperwork and the process is a simple aim: treat people fairly and lawfully, and be able to show you did. That’s the job.