Detention orders were on Wednesday served on four men nabbed last month for their alleged role in a football match-fixing syndicate.The alleged ringleader - Singaporean Dan Tan Seet Eng, who is also wanted in Italy and Hungary for similar offences - is believed to be among those being held.
The orders were issued by Deputy Prime Minister and Home Affairs Minister Teo Chee Hean under the Criminal Law (Temporary Provisions) Act, which allows for suspects to be detained without trial.
A fifth suspect in the case was issued a police supervision order in lieu of prison detention. He is now required to, among other things, be subjected to a curfew, and report to the police regularly.
Lawyers Hamidul Haq and Thong Chee Kun, from Rajah & Tann, have been hired to defend Tan. Mr Haq said: "We will explore all legal options open to us."
It is understood that one of those options could include an application for a judicial review of their client's detention order.
The five were among 14 suspects arrested during an islandwide raid conducted by the police and anti-graft officers on Sept 17.
This, after two years of investigation that involved extensive collaboration between the local authorities and their overseas counterparts such as Interpol's Global Anti-Match-fixing Task Force.
The Straits Times understands that the five arrested under the Act include Singaporean Anthony Santia Raj who had been flagged in similar investigations overseas, and former S-League player Gaye Alassane, a Mali-born Singaporean who is suspected of rigging football matches in Central America.
The remaining nine suspects, believed to include Tan's Chinese national wife, are being investigated for corruption but have since been released on bail.
The Home Affairs Ministry declined to confirm the names of the 14, citing ongoing investigations. Well-placed sources said more arrests are expected.