Related Rule
Netherlands
Practice Relating to Rule 68. Precautions while Receiving Parlementaires
The Military Manual (2005) of the Netherlands states:
[F]or the sake of security, and to prevent the parlementaire from gathering intelligence, the route which he has to follow may be preassigned. The parlementaire and escorts may be blindfolded. The number of persons accompanying the parlementaire is limited. 
Netherlands, Humanitair Oorlogsrecht: Handleiding, Voorschift No. 27-412, Koninklijke Landmacht, Militair Juridische Dienst, 2005, § 0419.