With a written demand for inspection or production, a party can get the opposing party to produce documents or things for inspection, copying, testing, and sampling. CCP §2031.010. This can be a powerful discovery tool with at least five advantages over other discovery methods.
Because documents produced from computers will represent only a small fraction of the electronically stored information that may exist, a request for production during discovery may not be enough. To get at all the relevant documents, you may want to demand the physical inspection of the responding party’s computer system under CCP §2031.010(c).