GSOThe Oireachtas Committee which grilled GSOC yesterday is asking the Justice Minister to come before it.
Alan Shatter will be questioned about how he is dealing with the bugging scandal.
TDs have also asked the Garda watchdog to hand over an independent report into the suspected spyng on its offices.
Chairman Padraig Mac Lochlainn said the committee has "grave concerns" following yesterdays evidence:
