The Los Angeles Times said Friday Scalia was the guest of a Kansas law school two years ago and went pheasant hunting on a trip arranged by the school's law school dean, Stephen McAllister, all within weeks of hearing two cases in which the dean was a lead attorney.
The cases involved issues of public policy important to Kansas officials, namely disputed laws to confine sex offenders and a prison program for treating sex offenders.
Scalia eventually sided with Kansas in both cases.
In a written statement, Scalia said: "I do not think that spending time at a law school in which the counsel in pending cases was the dean could reasonably cause my impartiality to be questioned."
Not all legal professionals agree.
"When a case is on the docket before a judge, the coziness of meeting privately with a lawyer is questionable," said Chicago lawyer Robert Cummins, who headed an Illinois board on judicial ethics. "It would seem the better part of judgment to avoid those situations."