DSMA-Notice

In the United Kingdom, a DSMA-Notice (Defence and Security Media Advisory Notice) is an official request to news editors not to publish or broadcast items on specified subjects for reasons of national security. DSMA-Notices were formerly called a DA-Notice (Defence Advisory Notice), and before that called a Defence Notice (D-Notice) until 1993. As of 2020, the system is still in use in the United Kingdom. A similar system was previously operational in Australia, but has fallen into disuse.

DSMA-Notice

In the United Kingdom, a DSMA-Notice (Defence and Security Media Advisory Notice) is an official request to news editors not to publish or broadcast items on specified subjects for reasons of national security. DSMA-Notices were formerly called a DA-Notice (Defence Advisory Notice), and before that called a Defence Notice (D-Notice) until 1993. As of 2020, the system is still in use in the United Kingdom. A similar system was previously operational in Australia, but has fallen into disuse.