When somebody starts their employment with you, there is certain written information that you must give them. Some of this information must be provided in a written statement of employment particulars, a document which is often included within an employment contract.
Other information that you must give employees includes information about health and safety, grievance procedures, and disciplinary procedures. It’s up to the employer how they want to provide most of this information. Creating employment documents like contracts of employment, employment policies, and job offer letters is a good way to communicate this information clearly and reliably.