Judge Daryl Labach has told the prosecution that it must provide calibration, maintenance and instrument reports for what was a relatively new breath sample device.
The equipment was used by the Saskatoon police from May 2011 until last year.
Defence lawyer Mark Brayford made a disclosure application earlier this month in Saskatoon court.
The judge denied a second defence request for a recording of a conversation between an RCMP officer and Pankiw on the night he was charged in July 2011.
The case has been adjourned to April 15 to discuss matters related to the judge-alone trial, which has yet to get underway.
Court has already heard that Pankiw called RCMP as he was driving after people he believed had tried to break into his home.
Once Pankiw entered the city, Saskatoon police pulled him over and charged him with impaired driving.
Pankiw represented Saskatoon-Humboldt for two terms as a Reform and then a Canadian Alliance MP.
Also on HuffPost