1987 Jan 15 - 1994 Apr 21
Prime Ministerial Private Office files
PREM19/4978
Security (Security arrangements for ceremonial and military events on Horseguards)
| Source: | TNA, PREM19 series |
|---|---|
| Release date: | Reconsideration 2029 |
| Classification: | |
| Page count: | |
| Themes: | Security services & intelligence |