Spitzer Case Prosecutor Described As Fair

The prosecutor, Boyd M. Johnson III, leads the public corruption unit of the United States attorney’s office for the Southern District of New York, which is handling the investigation of the Emperor’s Club V.I.P., a high-priced prostitution ring that Mr. Spitzer patronized.

Mr. Johnson and his boss, Michael J. Garcia, the United States attorney, will be the ultimate arbiters of whether to bring charges against Mr. Spitzer, and experts expect that they will make the decision in a deliberate manner and only after hearing from his defense team.

Mr. Spitzer has not been charged with any crime, but legal experts say he could face charges of structuring, which involves concealing payments, and of illegally transporting prostitutes across state lines, an approach rarely used against prostitutes’ clients.

Prosecutors are also said to be looking at whether he used campaign money to pay for prostitutes, involved state employees in illegal activities or made unnecessary trips at public expense to facilitate his liaisons.