Roman Giertych, a lawyer who has represented Donald Tusk, a former president of the European Council and Polish prime minister, has told a Senate commission investigating a spyware case that his client was the main target of the surveillance.
The District Prosecutor's Office in the central Polish town of Ostrów Wielkopolski has launched an investigation into the alleged phone hacking of a senior opposition figure.
Poland's Supreme Audit Office (NIK) has found that the Central Anti-Corruption Bureau's (CBA) operations were illegally financed, NIK head told a parliamentary body probing a spyware case.
An expert from the University of Toronto’s Citizen Lab, which researches digital surveillance, has said there is evidence that a Polish opposition senator was "under extensive monitoring."
Polish government agencies will scrutinise allegations that the Israeli-made Pegasus mobile phone spying system was used against government opponents, Mateusz Morawiecki, the prime minister, has said.
The Polish prime minister has said media reports of opposition figures being spied on with Israeli-made software must be verified before any accusations are made.
Prominent Warsaw attorney and former politician Roman Giertych and his client and businessman Ryszard K. were detained by anti-corruption police on Thursday in connection with money laundering inquiries around a stock market company.