An inspection body establishes whether something meets the requirements: lifts, fuels, foods, fire alarm systems, etc. These requirements are set in law or are specified by the client. An important characteristic of inspection bodies is that they provide the result of a test or investigation with a professional opinion, for example: Is this lift safe? Does this fruit meet the requirements for export? They therefore go a step further than test laboratories. If an inspection body uses measuring equipment this equipment has to be calibrated by a calibration laboratory. If laboratory tests are required an inspection body can use the services of an accredited test laboratory.