"You might want to touch base with them," she advised.

The forged records were faxed to CBS from an Abilene, Texas, Kinko's, which Colvin confirmed is within the jurisdiction of Roper's office.

Calls on Friday to the Justice Department, as well as to the office of Texas Attorney General Greg Abbott, were not returned.

Forging military documents is a federal felony.

The suspect documents, faxed to CBS within the last few weeks, have been called forgeries by dozens of experts who have reviewed them. At least one of CBS's own document authenticators said Thursday she tried to warn "60 Minutes" producers that they were fakes.

Bob Kohn, author of "Journalistic Fraud: How The New York Times Distorts the News and Why It Can No Longer Be Trusted," suggested Thursday that the forgery scandal may have legal ramifications for "60 Minutes" anchorman Dan Rather.

"He's got a legal problem," Kohn told MSNBC's "Scarborough Country."

"If he basically goes out and says that these are forged documents ... [they've] got to expose [the source]. That guy can turn on Dan Rather, the producers, and everybody at CBS."

If a criminal investigation were launched, said Kohn, "then you have got to watch out for witness tampering and obstruction of justice, the same thing they got [going] after Martha Stewart."

Editor's note: