The Department of Justice has served subpoenas to several dioceses in the state of Pennsylvania, in what is believed to be a state-wide move by federal authorities to investigate sexual abuse of minors by Catholic clergy.

Chanceries across the Commonwealth were served with requests for documentation and files Oct. 18.

While Pennsylvania diocesan officials have not commented on the scope of the materials subpoenaed, a senior Church official told CNA the investigation concerns the federal crimes of transporting minors across state lines to abuse them, and the production or distribution of illegal pornography, including electronically.

The files requested of at least one diocese date back only to 2001, the official said.

There has been widespread speculation that a federal investigation might focus on charges related to institutional cover-ups or conspiracy, perhaps seeking to build a case under the federal RICO laws meant for dealing with organized crime. The official told CNA that, at present, the scope of the investigation does not seem to include conspiracy or other institutional charges.

"The files they are asking to be handed over, at least here, are in relation to the possible commission of particular crimes," he said.

"As its been explained by the agents coming in, it's those two crimes [transporting minors across state lines and illegal pornography] that are being looked at, maybe that's got something to do with why they are only looking at files going back to '01," the official said.

"Maybe there is more to come, but it looks like they are beginning by looking for actual acts of abuse of minors and not yet on the institutional side of things – at least so far."

So far, six of the eight the dioceses in the state have confirmed being served by federal agents, these are: Pittsburgh, Allentown, Scranton, Erie, Philadelphia, and Harrisburg.

"The Archdiocese of Philadelphia has received a subpoena issued by a federal grand jury, which requires the production of certain documents. The Archdiocese will cooperate with the United States Department of Justice in this matter," Ken Gavin, spokesman for the Archdiocese of Philadelphia, told CNA.

Bill Genello, director of communications in the Diocese of Scranton told CNA that "the Diocese of Scranton has received the subpoena and will completely cooperate."

The federal investigation comes just over two months after the Aug. 14 publication of a Pennsylvania grand jury report investigating clerical sexual abuse. That report identified more than 300 priests accused of abusing 1,000 victims over a period of seventy years.  

The report resulted in charges being filed against only two priests. The federal statutes of limitations that apply to crimes crossing state borders could lead to further indictments.

A spokesman for the Archdiocese of Washington told CNA that "the archdiocese knows nothing about a Department of Justice proceeding beyond the initial media reports."

Washington's recently retired archbishop, Cardinal Donald Wuerl, served as Bishop of Pittsburgh from 1988-2006, and came under fire after the grand jury reported suggested that he had permitted at least one priest accused of sexual abuse to remain in ministry after an accusation had been made.

According to the Washington Post, the decision to open the investigation was made by federal prosecutors in the U.S. attorney's office in Philadelphia and was not a directive from Washington, D.C.

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State-led investigations into clerical sexual abuse are currently underway in several states including Maryland, Michigan, Nebraska, New Jersey, and Missouri. Other states, like New York, have announced they will soon begin taking similar action.

The news of a federal investigation in Pennsylvania raises the possibility that similar probes could also be launched in other states.