(Olympia, WA)  --  Senate Republicans in Olympia say they plan to subpoena information about the problem surrounding the Department of Corrections, who released more than three-thousand inmates from Washington prisons early by mistake.  Spokane Valley Senator Mike Padden, who heads the Senate Law & Justice Committee, says he has questions about the independence of an investigation Governor Jay Inslee launched last month into a computer problem DOC said led to the early releases.  Corrections Secretary Dan Pacholke was questioned by the Senate panel Monday, but Vice Chairman Steve O'Ban expressed dismay over Pacholke's deferral of some of the questions.  Governor Inslee told the "Spokesman-Review" he doesn't appreciate GOP lawmakers questioning the investigation's integrity.