As Singapore's premier domestic security and intelligence agency, we are entrusted with the task of safeguarding the security, stability and sovereignty of our nation.

The Internal Security Act (ISA) allows the Government to act pre-emptively to protect Singapore from threats to our internal security, such as terrorism, foreign subversion, sabotage, espionage, politically motivated violence by other countries and acts of violence or hatred against persons on the basis of race or religion.

To find out more about the ISA, download the ISA Booklet.