A longtime professor of psychology at Texas Christian University underwent a psychological evaluation today after being jailed last week on misdemeanor charges, according to his lawyers.

Officials at the university said Charles F. Bond Jr. had “exhibited extremely inappropriate conduct and made threatening remarks to some campus members.” He also “hinted” that he might bring an Uzi submachine gun to the campus, according to a police report obtained by the Star-Telegram, a newspaper in Fort Worth.

It’s not the first time that Mr. Bond has had contact with law-enforcement officials, though past interactions seem unlikely to have included jail time. His research focus — on deception and lying — has drawn interest from both the FBI and the CIA, according to his curriculum vitae.

Mr. Bond has taught at Texas Christian for 21 years, but an administrator told The Chronicle today that the alleged threats and inappropriate behavior were a “recent development.”

Mr. Bond’s lawyers say they have been presented with no evidence that Mr. Bond uttered the “terroristic threat” with which he has been charged. “The law presumes that Mr. Bond is innocent of these charges, and so do we,” said the lawyers, Tim M. Clancy and Patrick J. McLain, in a written statement. —Sierra Millman