Speaking at a news conference in Warsaw, Jarosław Kaczyński, leader of the governing conservative Law and Justice (PiS) party, said the inquiry would be conducted by parliamentarians and experts on the basis of a legislative proposal drawn up by his party.
"The issue has become a subject of controversy and it would be useful to explain all the matters connected with it," Kaczyński said at a joint news conference with Prime Minister Mateusz Morawiecki, as quoted by Polish state news agency PAP.
Morawiecki told reporters the inquiry would aim to examine the possible "influence of Russian agents on Poland's energy security."
He added, as quoted by the PAP news agency, that such a probe was necessary "not only to clear up the past, but also to get rid of Russia's residual influence once and for all."
Morawiecki told reporters that "it is necessary to explain why agreements unfavorable to Poland were signed with Russia" in the past. He said such deals increased Poland's "dependence on Russian hydrocarbons."
He also argued that Poland's previous centrist government enacted regulations that enabled Russian businesses to acquire shares in Polish strategic enterprises.
Source: IAR, PAP, TVP