https://legalref.judiciary.hk/lrs/common/search/search_result_detail_frame.jsp?DIS=5288&QS=%28%7BCHEUNG+Lai+Man%7D+%25parties%29&TP=JU
判案書
// He was
fond of collecting things, and enjoyed arranging his collection orderly and systematically...Having watched many pornographic CDs, he was tempted to make his own CD collections. He started buying a video camera in 1997, and planned his action carefully. He was
dissatisfied with the production, and was hooked onto producing better ones, and bought a second video camera. He
did not find the process of rape ecstatic, nor find his own video enjoyable 
. He was neither interested, nor aroused on watching his CD. Like his habit of hoarding things,
he felt under-gratified until he had possessed a complete set. He yearned for producing a good pornographic CD by himself, thinking that he would stop after it was perfected...He was inclined to be rigid, stubborn, possessive and perfectionistic. //