After graduating from law school, Scullin served in the United States Army as an Infantry Commander in Vietnam.
In 1982 he was appointed United States Attorney for the Northern District of New York by President Ronald Reagan.
[1] Scullin was also appointed by Chief Justice Rehnquist to the United States Foreign Intelligence Surveillance Court for a term of seven years running from 2004 until 2011.
[2] He wrote that "there is no longer any basis on which this court can conclude that the District of Columbia's total ban on the public carrying of ready-to-use handguns outside the home is constitutional under any level of scrutiny.
[4] On July 29, 2014, in response to a partially unopposed motion filed by the District of Columbia, Judge Scullin issued a 90-day stay of his initial order.