1.   Just as we were crossing Chelsea Bridge we were stopped by the police at a road block.

2.   The road blocks were a counter to terrorist attacks in that area.

3.   Troops established a road block on the frontier.

4.   The main entry road was well sealed off with road blocks and white-helmeted military cops behind which a little bit of American Mid-West flourished.

5.   PC Andrew Ness, of Tayside Police, told how he had been on the road block looking for another vehicle when a white Cavalier had burst through.

6.   Near Perth, they burst through a police road block, put in place for another enquiry.

7.   Police picked up Mr Beaton and MacIver was arrested at a road block at Doune.