A federal investigator with the Social Security Administration plans to testify before a Missouri Senate committee looking into the disclosure of a list of concealed gun permit holders.

The Social Security Administration confirmed Monday that Special Agent Keith Schilb of the inspector general's office will appear Wednesday before the Missouri Senate Appropriations Committee. The Senate had issued a subpoena Friday seeking his testimony.

The Missouri State Highway Patrol acknowledged recently that it had twice obtained a list of Missouri concealed gun permit holders and provided it to the Social Security Administration for a potential investigation into fraudulent claims for disability benefits. But the patrol said federal investigators were unable to read the computer disk of information and so destroyed it.

Some Republican lawmakers contend the shared information violated privacy rights.