Gov. David A. Paterson announced on Monday that the state would accelerate consideration and granting of pardons to legal immigrants for old or minor criminal convictions, in an effort to prevent them from being deported. But while immigrant advocates were quick to embrace Mr. Paterson’s initiative, supporters of tougher immigration enforcement sounded a different note. "There are people out there, maybe the governor included, who don’t want to deport anybody, even people who have committed crimes," said Jan Ting, a professor at Temple’s Beasley School of Law and a former assistant immigration commissioner. "I understand the impulse, but it’s an impulse that leads to open borders."