Parnell's request Thursday came two days after an independent investigator's report on a complaint against Palin was leaked to The Associated Press.
The investigator said he found probable cause Palin had violated ethics laws by trading on her position as she sought money for legal fees. Palin said in a statement this week that any notion she played a role in the defense fund is "misguided." She and her lawyer have said the matter is still pending.
Parnell compared the leak of the investigator's preliminary report to someone taking notes from a jury room and publishing them before all the evidence is in and a verdict is reached.
Bill McAllister, a spokesman for Attorney General Dan Sullivan, said Sullivan was already reviewing the law that governs ethics complaints before Parnell's request and "it will not be long before he has something to say about it."
Palin appointed Sullivan in June.
In a posting Thursday on the social network site Twitter, Palin again complained about leaks of confidential documents, saying they were "out of context 2 create false headlines, pre-judge investigation, destroy integrity of process & strip rights; Abuse WILL cont til leaks/friv filers r held accntble."
Important warning about e-mails purporting to be from the adn.com staff.