Rickey Jackson was drafted by the Saints in the second round of the 1981 NFL draft.[1] He was the first member of the unit; he played five seasons and was invited to three Pro Bowls before the Dome Patrol was formed.[1] The team did not have a winning record in any of those seasons.[2] In 1985, the Saints defense gave up over 25 points per game, which was seventh worst in the league.[3] In 1986, the Saints selected outside linebacker Pat Swilling in the third round of the draft and acquired middle linebackers Vaughan Johnson and Sam Mills from the recently folded United States Football League (USFL).[4][5][6] Also arriving from the USFL was head coach Jim Mora.[7] The defense improved to seventh best in points allowed per game in 1986, allowing an average of 17.9 points.[8] In 1987, the team finished with a 12–3 record,[a] posting the first winning record in franchise history as well as its first playoff appearance.[10] The Saints ranked fourth in points allowed per game in 1988 and went 10–6, but missed the playoffs after finishing third in a strong NFC West division.[11]

The team made the playoffs three straight seasons from 1990 to 1992. Three members of the Dome Patrol were named to the Pro Bowl in 1991, and Swilling was named the Associated Press NFL Defensive Player of the Year after leading the league with 17 sacks and forcing six fumbles.[12][13] The Saints defense surrendered the least points of any defense in the league that season and forced the most turnovers.[14] In week three of the season, the Saints defense held the Los Angeles Rams to 120 yards and six first downs, and recorded five sacks in a 24–7 win. "The Dome Patrol really rolled today," said Swilling after the game. "Sam Mills, Rickey Jackson, Vaughan Johnson and me. We got it on, didn't we?"[15] The 1991 season also saw the Saints win their first division title, as they finished first in the NFC West.[7]

All four members were invited to the Pro Bowl for 1992.[16] This remains the only time in NFL history that four players at the same position for the same team have made a Pro Bowl together.[13] Again the defense surrendered the least points in the league, and were second in yards given up.[17] Swilling was the first to leave the Saints after the 1992 season, in a trade to the Detroit Lions, followed by Jackson and Johnson in 1993 and Mills in 1994.[7] Overall, the Dome Patrol combined for 18 Pro Bowls and ten All-Pro selections and made four playoff appearances.[2]