By the Associated Press

The Federal Public Defender's Office has complained about the practices of the Arizona Department of Corrections in carrying out executions by lethal injection.

Among the concerns are the qualifications of those who insert intravenous lines into the condemned prisoners. Lawyers also claim prison staff repeatedly fail to find suitable veins in the prisoner's arms and must resort to a surgically installed catheter in the groin area.

The Federal Public Defender's Office in Phoenix filed a petition Wednesday with the 9th U.S. Circuit Court of Appeals in San Francisco, says the office’s Dale Baich.

The petition seeks to allow defense lawyers to witness the insertion of intravenous lines.