HARRISBURG — Pennsylvania’s casino regulations should be strengthened and personnel and procedures at the Gaming Control Board should be overhauled, a grand jury said in a report issued today.

The grand jury spent two years investigating how licenses were awarded to casinos, but the probe hasn’t led to any criminal charges.

But the panel’s 102-page report was highly critical of how agency lawyers, administrators and board members handled their duties. It made 21 recommendations, among them that the board needs more experienced employees, particularly among its lawyers, and should sharply limit the number of secret meetings it holds.

The board “failed to thoroughly protect the public from unlawful gaming practices; failed to maximize potential new revenue to the commonwealth to support property tax relief ... and otherwise engaged in activities which eroded, at a minimum, this grand jury’s confidence in the system,” the report said.

The board responded in a statement that called its efforts an “unmitigated success.”

“After this grand jury met for more than two years, there were no arrests, no presentments, no indictments,” board chairman Greg Fajt said. “They found no criminal activity because there was, in fact, no criminal activity to be found.”

The grand jury recommended that an outside agency conduct annual audits and inspections of the gaming board and said clear rules are needed to prevent board members from applying for or holding slots licenses.