multiple test: As the business integration test proved to be inadequate, the multiple test was introduced in the case of Ready Mixed Concrete Ltd v Minister of Pensions and NI (1968). Here, it was held that three conditions must be fulfilled for a contract of service to exist: 1. The worker agrees for the payment of a wage to provide work or skill for the other person. 2. They agree to be under the other person's control, so that it makes the other the master. 3. Other terms of the contract are consistent with the contract being one of service. However, if the parties have stated in the contract that a person will be self-employed and the other terms of the contract reflect this, the contract will be regarded as one for services. This means that the worker is an independent contractor and the employer, generally, will not be liable for their actions.