Corbett, the Republican incumbent attorney general, plans to run on a record that includes aggressively prosecuting large-scale drug rings and gangs as well as establishing units to focus on child predators, people who abuse the elderly, and corrupt public officials.
Northampton County District Attorney John Morganelli, trying for a third time to get the Democratic nomination for attorney general, might not face opposition.
Morganelli said Corbett's office should have been more aggressive in pursuing civil claims.
"Tom's done a good job on the drug work and things of that nature, which is pretty much standard fare, but a lot of the A.G.'s offices across the country are a lot more active," he said.
A wild card is Democratic Philadelphia District Attorney Lynne M. Abraham, who is being silent about her plans beyond her announced intention not to seek reelection in 2009.