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Mr. William Ross
asked the Secretary of State for Northern Ireland what weight of explosive material, believed to be in the possession of a terrorist organisation, was seized by the security forces in Northern Ireland in each month since 1 January 1983 to the latest convenient date; and of that explosive material how much was of commercial origin and how much home made.
Mr. Scott
[pursuant to his reply, 12 June 1985, c. 479 The information is as follows:
| Weight of Explosives in kilograms recovered by the security forces in Northern Ireland | |||
| Improvised | Commercial | Not Known | |
| 1983 | |||
| January | 342·67 | 10·50 | — |
| February | 659·70 | 1·00 | 1·55 |
| March | 145·12 | 17·13 | 0·06 |
| April | 593·00 | 3·15 | 1·00 |
| May | 723·50 | 2·50 | — |
| June | 548·15 | 3·00 | — |
| July | 392·90 | 0·68 | 0·06 |
| August | 180·75 | 10·60 | — |
| September | 937·04 | 0·17 | — |
| October | 191·09 | 7·00 | — |
| November | 21·05 | 2·60 | — |
| December | 314·10 | — | — |
| Total | 5,049·07 | 58·33 | 2·67 |
| 1984 | |||
| January | 431·90 | 1·00 | — |
| February | 455·80 | 5·14 | — |
| March | 820·10 | 8·10 | — |
| April | 500·21 | — | — |
| May | 2,545·80 | 5·75 | — |
| June | 60·16 | 13·90 | — |
| July | 202·70 | 7·56 | — |
| August | 64·26 | 0·06 | 1·00 |
| September | 130·50 | 9·00 | — |
| October | 423·50 | 17·00 | — |
| November | 0·10 | 4·50 | — |
| December | 935·02 | 1·56 | — |
| Total | 6,570·05 | 73·57 | 1·00 |
| 1985 | |||
| January | 230·10 | 0·10 | — |
| February | 41·00 | 0·24 | 0·60 |
| March | 15·00 | 5·50 | 15·00 |
| April | 1,094·00 | 4·25 | — |
| May | 633·23 | 6·43 | — |
| Total | 2,013·33 | 16·52 | 15·60 |