3. The visits shall be conducted by at least two members of the Subcommittee on Prevention. These members may be accompanied, if needed, by experts of demonstrated professional experience and knowledge in the fields covered by the present Protocol who shall be selected from a roster of experts prepared on the basis of proposals made by the States Parties, the Office of the United Nations High Commissioner for Human Rights and the United Nations Centre for International Crime Prevention. In preparing the roster, the States Parties concerned shall propose no more than five national experts. The State Party concerned may oppose the inclusion of a specific expert in the visit, whereupon the Subcommittee on Prevention shall propose another expert.
3. 查访应至少由防范小组委员会二名成员负责进行。必要时，可由经证明具备本议定书所涉领域专业经验和知识的专家陪同成员进行查访，这些专家应从依据缔约国、联合国人权事务高级专员办事处以及联合国国际预防犯罪中心提出的建议编制的专家名册中选出。在编制专家名册时，有关缔约国最多可提出五名本国专家。有关缔约国可反对某一专家参加查访，在这种情况下，防范小组委员会应提议另派专家。