2. Where there are reasonable grounds for believing that a person has been subjected to enforced disappearance, the authorities referred to in paragraph 1 of this article shall undertake an investigation, even if there has been no formal complaint.
二、 在有正当理由相信有人遭到强迫失踪的情况下，即使无人正式告发，缔约国也应责成本条第一款所指的机关展开调查。