China’s hostage diplomacy reaches Czechia: spy arrest sparks retaliatory detention

Prague is confronting a classic case of Chinese hostage diplomacy after authorities arrested a suspected Chinese intelligence operative earlier this year, only to see a Czech citizen detained in China weeks later. The incident involves a radar systems specialist linked to a major European defense contractor and comes as Czech political leaders prepare high-level visits to Beijing.

Security analyst Jakub Janda, director of the European Values Center for Security Policy in Prague, detailed the developments on social media, drawing from Czech investigative reporting. The episode underscores growing tensions between Prague and Beijing despite some elements within the Czech government favoring closer economic ties.

The sequence of events

In January 2026, Czech police arrested a Chinese citizen on charges of conducting intelligence activities on behalf of China targeting Czech political figures. The arrest was handled by Czech security services and marked a significant counter-espionage action.

Then, in late June 2026, a Czech national was detained upon arrival at a Chinese airport. According to Czech security assessments, he was “taken by Chinese security agencies” into custody despite no formal legal proceedings having been initiated against him at the time. Czech officials view the detention as a clear act of hostage diplomacy – retaliation for the earlier arrest in Prague.

The detained Czech citizen had been formally invited to China to conduct certification work on radar systems at Chinese airports. He is connected to Eldis, a Czech company owned by the Czechoslovak Group (CSG), which reportedly holds 13 contracts for airport radar systems in China. CSG is one of the largest defence and industrial groups in Europe.

Political context in Prague

The timing amplifies the diplomatic stakes. Speaker of the Czech Chamber of Deputies Tomio Okamura is scheduled to visit China starting 19 July. Reports indicate that discussions around a potential prisoner swap – exchanging the detained Czech for the Chinese operative held in Prague – are expected to feature in the talks.

Prime Minister Andrej Babiš had been slated to visit China this spring, but the trip was postponed until fall with plans remaining unclear. Analysts suggest the current scandal could derail any efforts at rapprochement or “appeasement” between Prague and Beijing.

Domestically, the case adds complexity. Prime Minister Babiš has been in open political confrontation with CSG owner Michal Strnad. The detained individual’s ties to the company have drawn the firm into the geopolitical fray. Strnad reportedly met with Speaker Okamura just days after the Czech citizen’s detention in late June.

Czech opposition figures are already calling on the government to issue an immediate travel warning advising citizens to leave China or avoid travel there, citing the risk that any Czech in the country could become a target for similar actions.

Broader geopolitical implications

This episode places Czechia alongside countries such as the United States, Japan, Sweden, and Canada that have previously faced Chinese hostage diplomacy tactics. Even a government in Prague perceived as relatively pro-China has now become a target of what critics describe as “barbarian practice.”

The involvement of the Czechoslovak Group highlights risks to Europe’s defense industrial base. CSG’s exposure through its Chinese contracts demonstrates how commercial ties can be weaponized in great-power competition.

Janda warned that every Czech citizen currently in China is now a potential target of governmental kidnapping. He urged immediate action on travel advisories.

The case also tests the limits of economic engagement with China. While some Czech politicians and businesses have sought to expand ties, the detention of a technician performing routine certification work sends a chilling signal about the reliability of such partnerships when political or security disputes arise.

What comes next

With Okamura’s visit just days away, attention will focus on whether any progress occurs on the detained Czech citizen’s release or on broader bilateral issues. The outcome could influence the postponed Babiš trip and shape Czech foreign policy toward China in the coming months.

Czech security services appear to have assessed the detention as retaliatory from the outset. Their public or semi-public signalling through analysts like Janda suggests Prague is prepared to frame the issue clearly rather than downplay it.

Following the publication of this article a spokesperson of CSG sent the following comment:

“No employee of any company within the CSG Group has been detained in the People’s Republic of China. Therefore, we will not be commenting further on this matter.”

This article is based on reporting cited in a detailed thread by security analyst Jakub Janda (@_JakubJanda), drawing primarily from investigations by Lukáš Valášek of Seznam Zprávy and Lukáš Prchal of ENKOCZ.

Caption:The Tadeas 4×4 vehicle produced by CSG [CSG website]