Polish security agents also searched the Warsaw offices of Huawei and Orange, Poland's leading communications provider, where the former Polish spy recently worked, seizing documents and electronic data.
Though the Canadian government launched a security review of Huawei's 5G technology past year, it is still a major supplier of telecommunications equipment in Canada and at least two major carriers have said they plan to test the company's 5G technology in small-scale pilots.
The move is the latest setback for Huawei, which saw the arrest of the daughter of the firm's founder in Canada and U.S. efforts to blacklist the company internationally over security concerns.
US intelligence agencies allege Huawei is linked to China's government and that its equipment could contain "backdoors" for use by government spies.
"It's not the beginning of this case but it's also not the end", he said.
Poland's cyber-security chief, Karol Okonski, told RMF Radio that ideally the European Union and North Atlantic Treaty Organisation would be "as consistent as possible" on Huawei. If convicted, they could face up to 10 years in prison each.
Poland's counterintelligence agency searched the local Huawei office and the home of the Chinese national, Poland's state-owned broadcaster reported Friday.
In mid-August, Washington enacted legislation banning U.S. government agencies from using Huawei products amid concerns that the company's mobile phones "pose an unacceptable risk to the [Pentagon's] personnel, information and mission". The Chinese national is a sales director while the Polish is a former high-ranking official at Poland's internal security agency.
Huawei has come under global scrutiny lately. The arrest was made as a part of ongoing investigations into the alleged violations of United States trade sanctions.
China is highly concerned over the issue, the press office at the Ministry of Foreign Affairs said. "We have no comment for the time being".
It comes after Canadian officials arrested a top Huawei executive, Meng Wanzhou, in December at the behest of US authorities as part of an investigation into alleged violations of USA trade sanctions. The company said it abides by applicable laws wherever it operates and expects employees to do the same. Orange told the AP it did not know if the suspicions against its employee were related to his work at Orange or elsewhere. Until then, she's under strict bail conditions, which include electric monitoring and an around-the-clock security detail. As well as producing smartphones, the Chinese corporation develops mobile network infrastructure used in many countries, which some nations see as a potential security risk.