"Our work in the investigative commission will cause not only an earthquake, but also a tsunami."
PiS say the changes are a political witchhunt and that it always acted legally.
I'm sure that every surveillance conducted by secret services was accepted and ordered by court," former Deputy Justice Minister Sebastian Kaleta said.
However, Polish media have recently reported that the spyware may have also been used against PiS politicians, news that if proved true could strain lawmakers loyalties.
"It seems to me that this may be, unfortunately, a trial by fire that (PiS) won't necessarily pass," said Anna Materska-Sosnowska, a political scientist at Warsaw University.
Persons:
Witold Zembaczynski, Jacek Karnowski, Sebastian Kaleta, Anna Materska, Jaroslaw, Kaczynski, Alan Charlish, Pawel Florkiewicz, Anna Wlodarczak, William Maclean
Organizations:
Monday, Pegasus, Civic Coalition, Associated Press, Warsaw University
Locations:
WARSAW, Israel