Internal Security Department (ISD)
Report a Threat
Hotline: 1800-2626-473 (24 Hours)
Email: isd@mha.gov.sg
General Enquiries
Telephone: 6256 6657
Fax: 6256 1440
Operating hours for phone line:
Mondays to Thursdays: 0830 to 1800
Fridays: 0830 to 1730
Feedback: mha_feedback@mha.gov.sg
Address
New Phoenix Park, 30 Irrawaddy Road, Singapore 329561