Warwickshire moved back into title contention after wrapping up an emphatic 216-run victory over Nottinghamshire on the final day at Edgbaston.
Set an improbable 427 for victory, Nottinghamshire were bundled out for just 210 as New Zealand off-spinner Jeetan Patel starred once again on a dry surface.
Patel finished with match figures of 8-128 to help the Bears clinch their third win of the season and reignite their title defence.
A back-to-form Alex Hales, making 58 from 182 balls, his first half-century since April, threatened to hold off Warwickshire but starting with his dismissal the last six wickets went down for just 56 runs.
Last year Patel took 51 wickets in helping to win the championship and now his 15 in successive victories over Middlesex and Notts have put the champions within range of the current leaders, Sussex.
While Hales should take confidence from breaking free from a run of eight single-figure scores in 10 championship innings, Samit Patel could be facing disciplinary action for a negative reaction to his dismissal by Rikki Clarke.
Given out by Trevor Jesty when William Porterfield dived to claim a catch at square leg, the batsman showed dissent in a reluctance to leave the pitch, a shake of the head and a swish of his bat.
That was one of three wickets for two runs in 24 balls as Nottinghamshire finally buckled in their plan to bat out the final day.
From the first hour - when they added a mere 10 runs from 15 overs - it was clear they believed a target of 427 would be some way out of reach unless they batted exceptionally well.
The departure of Steven Mullaney, his off stump sent spinning when a ball from Chris Woakes skidded through, would not have increased their trust in a dry fourth-day pitch but in reality it was not offering a great deal of help to the bowlers.
There was some slow turn for Patel and in the main Warwickshire's strategy was to rotate the four seamers in support of the New Zealand off-spinner.
For a long time it was a hard slog, broken up only when Michael Lumb edged a catch behind off Keith Barker and again when James Taylor fell leg-before in a short, sharp spell by Boyd Rankin.
The door opened when Hales, having batted so diligently for three-and-a-half hours, went down the pitch to Patel but succeeded only in pushing a catch to the alert Porterfield at short mid-on.
Nottinghamshire's subsequent slide would have been a major disappointment. Only David Hussey (33) stayed for any length of time and the match was quickly over when he edged Woakes, with the new ball, to first slip.