San Francisco federal prosecutors may have struck first in the government’s crusade against stock options backdating, but it’s a case developing in the Brooklyn U.S. Attorney’s Office that will give the first glimpse into one of the most pressing questions: How does it affect the lawyers?

At some point this month — and probably within two weeks — the U.S. Attorney’s Office for the Eastern District of New York is expected to level criminal charges against former executives of Comverse Technology, said several people familiar with the investigation.