several areas of Asia) and prevent similar incidents from occurring. One of the cameras is to be installed on Hollywood Plaza at Soy Street and Sai Yeung Choi Street South. The system, which is encrypted and whose images are stored for only ten days, could be extended at later dates. 16 May 2009 incident A second incident, almost identical to the first, occurred on 16 May 2009 again in Sai Yeung Choi Street South. Two bottles were again thrown, this time near the Soy Street intersection, some 150 meters from the original attack. The attack occurred around 4:47 pm and resulted in injuries to 30 persons, all but one of whom were released from the hospital the same day. A 16-year-old female remained in the hospital for several days afterward. Donald Tsang again came to visit the area and urged the district council to accelerate the installation of cctv cameras. The next day, the original reward for information was increased to HK$300,000. There is suspicion (though police commissioner Tang King Shing later admitted there was no formal indication of a link) that both cases were committed by the same perpetrator, although the nature of the liquid thrown in both cases has not been made public as of 20 May. Early on that date, a second reconstitution was performed, with a number of bottles (several filled with acid) thrown from several buildings. The area was cordoned off and nearby shop were covered, with the Food and Environmental Hygiene Department cleaning afterward. Twenty buildings, the Pakpolee Commercial Centre and Foo Tai Building were thus identified as "possible locations". An unrelated incident had happened approximately one week prior to the second attack. Four persons were injured on 4 May, in Tsuen Wan District when a woman attempting to clear an ant nest spilled a mix of bleach, acid and insecticide to the street below. The incident, which injured a police officer and a baby girl, was initially thought to be a possible copycat of the December attack. The woman, who had just moved to the 12th-story flat on Hueng Woo Street, was arrested. 8 June 2009 incident A mere few hours after the announced cameras had been turned on, a third attack occurred around 8pm on 8 June at the intersection of Nelson and Sai Yeung Choi streets. Some three hundred police officers flocked to the area in an attempt to capture the