It is now a full member of the american society of crime laboratory directors ( ascld ) . mutual co - operation with forensic laboratories in the mainland and macau sar has been established for the investigation of cross boundary crimes involving the use of firearms 该科现为美国罪案实验所所长协会的正式会员,并与内地及澳门特别行政区的鉴证所合作,侦查涉及使用枪械的跨界罪行。