If, after deploying all control measures the risk is still deemed too great for employees to work safely, then what should employers do?

An obvious cost cutting measure is to reduce salaries, either temporarily or permanently. If you are to seek a reduction in salaries, this should be done fairly – either across the board or by selecting teams/individuals based on objective business reasons.

Note that this cannot be imposed without significant risk. Without agreement, this would need fair selection and consultation.

This is unlikely. Frustration is a doctrine rarely used as a way of getting out of leases. It operates to bring a lease to an early end because of the effect of a supervening event. It is then not a concept readily applicable to a situation where one party is looking to get out of a lease. To be able to argue the doctrine of frustration, you must be able to demonstrate that something unforeseeable has happened that makes it impossible to fulfil the lease and unjust to hold a party to its obligations.

This is not something that can be demonstrated easily.

There was a case in the High Court last year when the doctrine of frustration was looked at in a case involving the European Medical Agency.

The court found that Brexit did not frustrate EMA’s lease. EMA was granted leave to appeal that decision to the Court of Appeal, but unfortunately, the parties settled out of court so the arguments were not tested in the higher court.

Another reason why frustration is likely to fail is an argument that, whilst the current lockdown may force closures to businesses and whilst such closures maybe for a lengthy period, such closures will only be temporary.

Another obvious cost cutting measure is to reduce working hours, either temporarily or permanently. Again, it should be done fairly, either across the board or by selecting teams/individuals based on objective business reasons. Imposing without agreement would create significant risk, therefore would require fair selection and consultation.

If a contract contains a force majeure clause this may become operative due to the coronavirus pandemic and related emergency legislation. Such clauses exist to ensure that if some unforeseen event prevents a party from being able to perform their obligations under a contract, either on time or at all, they will be excused from their obligations and not be held liable for non-performance.

The clause must actually be written into the contract to have effect – a force majeure clause cannot be implied into a contract. Whether it can be relied on by a party will depend on the wording of the clause itself as it may only be applicable in certain limited circumstances.

You should seek legal advice at an early stage if you think that force majeure is relevant, because a number of potentially complex issues must be addressed, many of which will turn upon the exact wording of the force majeure clause in the contract in question:

• Has a force majeure event actually arisen?
• What notification process do you have to follow to rely on the provision?
• What mitigation steps do you have to take?
• What is the effect of the force majeure event – is the contract suspended, or can it be terminated (which might not be what you want)?

The reporting requirements relating to cases of, or deaths from, COVID-19 under RIDDOR apply only to occupational exposure, that is, as a result of a person’s work.

You should only make a report under RIDDOR when one of the following circumstances applies:

• an accident or incident at work has, or could have, led to the release or escape of coronavirus (SARS-CoV-2). This must be reported as a dangerous occurrence
• a person at work (a worker) has been diagnosed as having COVID-19 attributed to an occupational exposure to coronavirus. This must be reported as a case of disease
• a worker dies as a result of occupational exposure to coronavirus. This must be reported as a work-related death due to exposure to a biological agent