READ More : S$99 million lost to scams in 2017, police say Overall crime increased by 3.2 per cent in the first six months of the year due to the rise of such e-commerce cases, as well as scams to do with loans and the impersonation of China officials, said the Singapore Police Force (SPF). The number of criminal cases went up to 16,460 from 15,949. During this time, the number of e-commerce, loan and China officials impersonation scams also went up by 72.8 per cent, from 1,055 to 1,823 cases.