Special security features have been incorporated into the new definitive stamps . they include the use of a new type of stamp paper with multiple security fibres and an elliptical perforation in the middle of each vertical of the stamp . for high value stamps , iridescent ink is printed in the middle to give a shiny effect when viewing the stamp at different angles 新通用邮票在多方面加强了邮票的防伪特徵，包括印刷邮票选用纸张混有多种纤维，而邮票左右两边的垂直中间位置则有椭圆齿孔；高面额邮票的中间部分更以幻彩变色油墨印刷，即使从不同角度观看，邮票都充满光泽。
There were also a significant number of major public order and festive crowd management events during the year , all of which presented major policing challenges . in particular , the fireworks and " symphony of lights " displays and the newly completed avenue of stars attracted record crowds , especially visitors from the mainland 年内，西九龙总区多项涉及人群管理工作的大型公众活动及节日庆典，皆对西九龙总区的警务能力构成考验，尤其烟花汇演、幻彩咏香江灯光汇演及新近完成的星光大道，均吸引大量人群观赏，其中不少是内地旅客。
