On 16 July 2020, Mr.Yun Bin, a Civil Party in Case 002, handed over books "Painful History", which he wrote about his real life during the Khmer Rouge era, to the Legal Documentation Centre, 5 books, a soft copy video and a book "Painful Past" for the next generation to learn about the painful past of the victims in Khmer Rouge era. The handing over of all these books are like an important piece of evidence and a valuable gift for the our centre as well as the national and international public.