5. THE EVENTS MICRO-THESAURI  Ensuring mutual exclusivity, meaning that the scope of one term should not overlap with the scope of another. This is especially necessary for fields that are used to generate statistics, such as in counting cases. In order to ensure that terms are used in a coherent way, it is recommended that organisations develop definitions or "scope notes" describing the meaning of ambiguous terms. Once the terms have been finalised, codes can be assigned to represent them. Given below are the rules that HURIDOCS followed in producing its Micro-thesauri. 5.4 RULES IN ASSIGNING HURIDOCS CODES HURIDOCS has developed a new system of coding for the Micro-thesauri, which allows for a more systematic attribution of codes and provides users with additional possibilities for retrieving information. The new HURIDOCS codes consist of one or more group(s) of digits. Each group contains two digits, allowing up to 99 categories to be included on each level. The HURIDOCS documentation system allows for the use of a maximum of six groups of digits, or a theoretical possibility of coding almost a trillion categories! HURIDOCS recommends that organisations that use lists of the Supporting Documents start using the new codes. In order to illustrate the equivalence between the previous Supporting Documents and the Micro-thesauri, all Micro-thesauri that are based on Supporting Documents contain the codes used in the Supporting Documents. In assigning new codes, HURIDOCS has followed certain rules. These rules should also be followed when organisations develop local Micro-thesauri. Rule 1: One-level short lists If the list is short and does not have to be alphabetically arranged, numbering is simply sequential. Only one group of digits is used in this case. Thus, forMicro-thesaurus 32: Types of Court: 01 02 03 46 Civilian court Military court Administrative tribunal