According to Part 2 of Article 197 of the RA Criminal Procedural Code the preliminary investigation of a criminal case is to be completed in a term of not more than two months, starting from the day of the decision on the initiation of the criminal case.
根据《亚美尼亚刑事程序法》第197条第2部分，刑事案件的初步调查从决定开始刑事诉讼之日起，应在两个月内完成。