The Supreme Court said Tuesday it will hear a case involving honest services wire fraud, one of the charges for which Kevin Ring, a former associate of Jack Abramoff, is on trial.

The court will hear an appeal in the case of former Enron CEO Jeff Skilling, who was convicted in 2006 on 19 counts and says his conviction is not proper because he did not personally benefit from his actions, AP reports.

The appeal, expected to be heard in February, "will focus on the 'honest services law,' a federal statute that has become a formidable weapon of prosecutors but which defense lawyers say is so vague as to make unwitting criminals out of many people," the New York Times reports.

The jury in the Ring trial reached a decision on one of the honest services charges against him on Tuesday, but remains undecided on the other counts.

Two other cases related to the honest services fraud statute -- USA v. Black and USA v. Weyhrauch -- are expected to be heard by the Supreme Court soon, and the presiding judge in Ring's trial, Ellen Huvelle, has expressed concern that the eventual decision in that case could be overturned if the Supreme Court redefines the honest services statute in its decisions.