القاعدة ذات الصلة
Switzerland
Practice Relating to Rule 99. Deprivation of Liberty
Section C. Prompt information on the reasons for deprivation of liberty
Switzerland’s Basic Military Manual (1987) provides: “Every person arrested, detained or interned for acts committed in connection with the conflict shall be informed, without delay, in a language he or she understands, of the reasons why the measures have been taken.” 
Switzerland, Lois et coutumes de la guerre (Extrait et commentaire), Règlement 51.7/II f, Armée Suisse, 1987, Article 175.
In 2010, in its Report on IHL and Current Armed Conflicts, Switzerland’s Federal Council stated that:
3.4 [Increasing use] of anti-guerrilla tactics
Apart from the direct fight against insurgents, international humanitarian law also addresses other anti-guerrilla tactics. … If members of militias or opposition groups fall into the hands of the government they benefit from the protection of art. 75 of [the 1977] Additional Protocol I as well as that of art. 3 common to the [1949] Geneva Conventions. 
Switzerland, Federal Council, Report on IHL and Current Armed Conflicts, 17 September 2010, Section 3.4, p. 15.
[footnotes in original omitted]