Naved Arif took four quick wickets as Sussex needed just over an hour of the final day to complete victory over Nottinghamshire by an innings and five runs at Trent Bridge.
Arif (4-41) dismissed Chris Read (21), Graeme White (6), Paul Franks (7) and Andre Adams (0), part of a collapse that saw Nottinghamshire slump from 103-4 in their second innings at the start of the day to 172 all out.
Arif's fellow seamer James Anyon (1-43) had started the rot in the third over of the day with the scalp of Steven Mullaney (24).
Luke Fletcher had some fun at number 10, thrashing three sixes and three fours in his 39 off 22 balls - before he was last out to Amjad Khan (2-34).
Sussex earn 23 points for their efforts in the final match of the season, enough to move above Nottinghamshire into fifth spot in the final Division One table.
Nottinghamshire face an uphill task if they are to avoid ending the season in defeat against Sussex at Trent Bridge.
The defending champions were made to follow-on on day three after being dismissed for 311 in reply to Sussex's first innings 488.
Their plight worsened when they lost four further wickets before the close and the Outlaws head into the final day on 103-4 - still requiring 74 runs to make their opponents bat again.
Left-arm spinner Monty Panesar enjoyed particular success on the penultimate day, taking five wickets in total as Notts collapsed from 206-2 to 311 all out.
Opener Karl Turner (64), overseas recruit Darren Bravo (53) and captain Chris Read (55), all made half-centuries, however Panesar (3-60) and Naved Arif (3-86) shared six wickets to ensure Notts would bat for a second time in succession.
Attempting to bat out the close without further harm, Notts then lost four further wickets as Panesar removed Bravo and Rikki Wessels in the space of three deliveries.
Nottinghamshire seamer Andre Adams completed a five-wicket haul but could not stop Sussex set an imposing total of 488 on day two at Trent Bridge.
The 36-year-old returned figures of 5-110, his seventh five-for of the season, with Nottinghamshire making a solid start to their reply by reaching 132-1 at the close.
Murray Goodwin had passed the century mark on the first day and finally fell for 170 but only after he had combined with Naved Arif and Amjad Khan for two handy lower-order stands of 49 and 59 respectively.
Arif was caught behind off Adams for 30 while Khan, who was dropped by Alex Hales at first slip when on five, made 65 before he was trapped lbw, also by Adams.
Hales made some amends by passing 1,000 Championship runs before he hit Monty Panesar over the top to Ed Joyce to depart one run short of a half-century.
Opening partner Karl Turner did go on to pass the fifty mark, the first of his LV= County Championship career, finishing on 52 not out with Darren Bravo (17no) joining him at the crease.
Murray Goodwin's fourth LV= County Championship hundred of the summer helped Sussex reach 312-6 on day one against Nottinghamshire.
The 38-year-old hit 14 fours from 241 balls and shared in century partnerships with Ed Joyce (63) and 20-year-old Matt Machan, who made 71 on his championship debut.
Goodwin finished up unbeaten on 117 at Trent Bridge, the former Zimbabwe batsman reaching three figures against Notts for the sixth time in his career.
Sussex, who eased any fears of relegation to Division Two by beating Worcestershire last time out, had at one stage found themselves 28-2.
However Goodwin combined with Joyce to put on a partnership of 111 before the former became one of three victims for seamer Andre Adams, the New Zealander taking his tally to the season to 65 scalps.
Machan dominated a fifth-wicket alliance worth 114 in 30 overs until Adams took a leaping catch at third slip off the bowling of Charlie Shreck (2-74).