After being inactive for 7 of the first 8 games, Jarrett was activated for week 9 against the Atlanta Falcons due to the injury of 2nd string receiver Keary Colbert. He had two catches for 28 yards and recorded a special-teams tackle. On the year he had 6 catches for 73 yards and one tackle. In 2008, Jarrett played in 9 games, starting one. He had 10 receptions for 119 yards. On November 1, 2009, Jarrett made his second career start in place of an injured Muhsin Muhammad, in a victory over the Arizona Cardinals. On January 3, 2010, Dwayne caught his first touchdown pass from Matt Moore. A pass of 30 yards against division rival New Orleans Saints. The Panthers went on to win the game 23-10. Jarrett was cut from the Panthers on October 5, 2010 following his second DUI arrest. He had been pulled over for speeding on I-77 near Charlotte just before 2:00 a.m., according to Charlotte-Mecklenburg police spokesman Bob Fey. Jarrett had declined to take a breath test and was, instead, given a blood test. He was released on a bond of $2,000. During the week of November 21, 2010, Jarrett worked out with the Seattle Seahawks and his former college coach, Pete Carroll. On May 11, 2012, Jarrett was signed by the Saskatchewan Roughriders of the Canadian Football League. On June 7, 2012, the Roughriders placed him on the retired list. Jarrett credits his ability to growing up and playing catch with his uncle who "forced me to make one-handed catches." During his sophomore year, Jarrett shared a Los Angeles apartment with quarterback Matt Leinart. Jarrett has had some of his best college games against USC's rival, the University of Notre Dame, he credits this to how he was treated during the high school recruiting process: "They came down to recruit me, they talked to my coaches and everything. They didn't think I was intelligent enough to go to their school. That was kind of an insult to me. I've always had a little grudge against them." Jarrett was arrested and charged for DWI on the morning of March 11, 2008 in a Charlotte suburb of Mint Hill. A police officer witnessed Jarrett run a red light and performed a sobriety test, which Jarrett failed. He was released on $1,000 bond. Jarrett later pleaded guilty to his DWI charge. Jarrett got a 30-day suspended sentence, must pay $420 in fines, and perform 24 hours of community service and could be suspended by the league.