Investigations into potential criminal offences can be conducted by the Police or enforcement agencies.
Examples of such enforcement agencies include the Central Narcotics Bureau (CNB), Commercial Affairs Department (CAD), Corrupt Practices Investigation Bureau (CPIB), Immigration & Checkpoints Authority (ICA)
Government Ministries – such as Ministry of Manpower (MOM) – and some Statutory Boards – such as the Land Transport Authority (LTA), Inland Revenue Authority of Singapore (IRAS), Central Provident Fund Board (CPF) and Energy Market Authority (EMA) – are also empowered to conduct investigations into potential regulatory offences.