That left West Indies 230 behind England's first innings 566 for nine declared and 31 short of avoiding the follow-on.

But at tea England captain Michael Vaughan decided not to make the tourists bat again preferring to let his opponents bat last on a pitch which is already showing signs of cracking.

Giles' haul, which saw him finish with four for 65, came in the space off 33 balls as West Indies imploded from 322 for four to lose their last six wickets for just 14 runs.

West Indies resumed after lunch on 288 for three with Ramnaresh Sarwan 135 not out and fellow Guyanese Shivnarine Chanderpaul, dropped on 21, unbeaten on 27.

But Sarwan, dropped on 92, added just four more runs to his first Test hundred against England, and sixth overall, when he chopped a short and wide ball from pace bowler Andrew Flintoff on to his stumps.

The 24-year-old right-hander had faced 226 balls with 25 fours putting on 76 with Chanderpaul.

Giles, on his home ground, then produced a classic delivery that pitched on leg stump and hit the top of off to bowl Dwayne Bravo for 13.

And nine balls later wicketkeeper Ridley Jacobs went for a duck, an edged drive off Matthew Hoggard well caught by first slip Marcus Trescothick.

Giles, man of the match in England's first Test win at Lord's with nine for 210, then finally saw the back of the obdurate Chanderpaul for 45.

Pushing forward, the left-hander was caught off pad and glove by a diving Robert Key at silly point.

It was the first time in 19 hours and 12 minutes of Test cricket that Chanderpaul, whose three previous scores were 101 not out against Bangladesh at Kingston in June and 128 not out and 97 not out at Lord's had been dismissed.

He then had a third dismissal when Pedro Collins (six) was brilliantly caught one-handed low down by Flintoff at short backward square leg.

Giles finished the innings when he had Corey Collymore lbw for two.

England only took one wicket in the morning session when Flintoff dismissed West Indies captain Brian Lara for 95 to leave the left-hander 20 short of becoming the fourth batsman to 10,000 Test runs after India's Sunil Gavaskar and Australia's Allan Border and Steve Waugh.

His performance with the ball came after the 26-year-old Lancashire all-rounder Test-best 167 Friday.

West Indies, 1-0 down in the four-Test series after a 210-run thrashing at Lord's, resumed Saturday on 184 for two with Sarwan 87 not out and Lara 74 not out on what was still a good batting pitch and fast outfield.

But with Lara in sight of a hundred the 35-year-old left-hander lost his cool and his wicket.

He appeared upset by Flintoff's third ball of the morning, a slower delivery which he just managed to jam the bat on in time.

An agitated Lara, concerned about crowd movement behind the bowler's arm, then spoke to Australian umpire Simon Taufel.

Next ball he drove loosely outside off-stump and was well-caught, above his head, by Thorpe in the gully.

Lara had faced 127 balls with one six and 15 fours, putting on 209 with Sarwan for the third wicket.

Soon afterwards Sarwan's 19th four, off James Anderson, saw him to a century in 164 balls.

England should have had Chanderpaul out when he turned Giles off his legs only for Vaughan to drop the catch at short mid-wicket with West Indies 281 for three.