With the engagement of more professionally trained archaeologists , the government began to play a more active role in preservation and rescue of archaeological heritage , which is exemplified by the rescue excavations at yung long 1992 - 93 , tung wan tsai north 1997 and sha ha 2001 - 02 此外，政府亦邀聘多位专业的考古工作者，积极进行保存及抢救考古遗址的工作，例如涌浪（一九九二至九三年） 、东湾仔北（一九九七年）及沙下（二一至二年）的抢救发掘。
The sha ha excavation was one of the largest archaeological excavation works ever conducted in hong kong . the various cultural phases were deposited with well - stratified sequences . rich archaeological features and finds dated to the late neolithic period c . 5 , 000 b . c 沙下发掘可说是本港有史以来最大规模的田野发掘之一，总发掘面积达三千馀平方米，文化层序清晰明确，出土丰富新石器时代晚期（距今约五千年）及青铜器时代（距今约三千年）的遗迹和遗物，尚有不少汉代和宋明时期的文化遗存。
