Dane Paterson admitted it was a "relief" but a "good feeling" taking his maiden Notts five-wicket haul, as he closed his account with five for 90 from 28 overs, and Warwickshire finished their innings on 341.
The South African took three crucial wickets, including those of Sam Hain (61) and Matt Lamb (67) on the final session on day one, before adding two more to his tally in the morning.
In response, Nottinghamshire finished the day 173 for three, Ben Slater leading the fight with 77.
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