THE BURNED OVER DISTRICT

New Jersey Governor Christie is discovering the joys of investigations, when you play fast and loose with the rules beforehand, you can't have just one. And so Bridgegate has morphed into a look into the Gov and the Port Authority and that is spreading to the Pulaski Skyway, which is not owned by the Port Authority.

Investigations into the Christie administration and the Port Authority of New York and New Jersey have zeroed in on possible securities law violations stemming from a $1.8 billion road repair agreement in 2011, according to people briefed on the matter.

While the inquiries were prompted by the apparently politically motivated lane closings at the George Washington Bridge last year, these investigations center on another crossing: the Pulaski Skyway, the crumbling elevated roadway connecting Newark and Jersey City. They are being conducted by the Manhattan district attorney and the Securities and Exchange Commission.

The inquiries into securities law violations focus on a period of 2010 and 2011 when Gov. Chris Christie’s administration pressed the Port Authority to pay for extensive repairs to the Skyway and related road projects, diverting money that was to be used on a new Hudson River rail tunnel that Mr. Christie canceled in October 2010.

Again and again, Port Authority lawyers warned against the move: The Pulaski Skyway, they noted, is owned and operated by the state, putting it outside the agency’s purview, according to dozens of memos and emails reviewed by investigators and obtained by The New York Times.

But the Christie administration relentlessly lobbied to use the money for the Skyway, with Mr. Christie announcing publicly that the state planned to rely on Port Authority funds even before an agreement was reached. Eventually, the authority justified the Skyway repairs by casting the bridge as an access road to the Lincoln Tunnel, even though they are not directly connected.

In bond documents describing the Skyway reconstruction and other repairs, the Port Authority has called the projects “Lincoln Tunnel Access Infrastructure Improvements.”

The accuracy of this characterization is now a major focus of the investigations, according to several people briefed on the matter. Under a New York State law known as the Martin Act, prosecutors can bring felony charges for intentionally deceiving bond holders, without having to prove any intent to defraud or even establish that any fraud occurred.

Two veteran prosecutors in the Manhattan district attorney’s office public corruption unit are working with two S.E.C. lawyers who are experts in such bond issues, one person briefed on the matter said, and another noted that while the agencies were each conducting separate parallel inquiries, they were working together.

In addition to criminal charges under the Martin Act, the investigations could result in civil action under the Martin Act or by the S.E.C., under federal securities laws.

The Big Guy set himself up for a big fall that he can't bully and bluster himself out of. And it couldn't happen to a more deserving fellow.