The MSL is a guide to the Service Justice System to which all Service personnel can refer. While it will be of particular interest to the chain of command, the explanation and interpretation of the new legislation will be essential for all who are involved with Service discipline, in whatever capacity, in providing the knowledge and understanding necessary to carry out their duties effectively. It will also be an essential point of reference for those with a more general interest in the subject. As any adjustments are made to the Service Justice System the MSL will be amended so that at any particular time it represents a reliable and up to date reference. It should be noted that while Volume 1 and 2 contain policy and guidance on the law it is not an authoritative document in the strict legal sense.