What motives are behind SLD's move to investigate PC financing?

The Democratic Left Alliance (SLD) Parliamentary Club filed a motion in the Sejm to establish a special commission which would investigate the financing of the former party run by the Kaczyński brothers, Porozumienie Centrum (PC) by the Telegraf firm around a decade ago. Deputies of Law and Justice (PiS) claim that it is an attempt to attack their party as well as SLD's reaction to its decreasing popularity. Sejm Speaker Marek Borowski maintains that no investigation commission will be set up for the time being. PiS deputies are surprised by the fact that the commission would deal with the Telegraf issue. "Two days ago, the SLD demanded setting up a commission which would deal with the Foreign Debt Servicing Fund (FOZZ). So two days were enough for SLD to realize that the FOZZ commission could discredit the party even more," PiS's Aleksander Kamiński said. (Rzeczpospolita, p. A3) A.Z.