For information on the contractual right to lay-off generally, see: • the section: ‘Lay-off generally’ of Practice Note: Redundancy payments for lay-offs and short-time, and • Harvey on Industrial Relations and Employment Law, E [287]–[296]: Lay-off (Generally) According to Harvey, E [287]) ‘In common industrial parlance, a 'lay-off' occurs when the employer temporarily shuts down its operation because it cannot find any or enough work for its employees. A typical cause is a depleted order book, but the problem might arise from want of supplies or raw materials (for example, because of industrial action at a supplier), or because the workplace is temporarily unusable (for example, because of fire or flood), or otherwise. The situation is susceptible of several different analyses in law, depending on the circumstances.’ The various cases cited in that paragraph relate to circumstances of inclement weather,