The ISA allows the Government to act pre-emptively to protect Singapore from threats to our national security, such as terrorism, foreign subversion, espionage, and acts of violence or hatred against persons on the basis of race or religion. For more information on the ISA, please refer to the ISA Booklet via this link: isomer-user-content.by.gov.sg/155/f37f14bc-487c-4d2e-aab3-aa81f5e9b8af/isa-booklet.pdf