Greek politician and European Parliament Vice-President Eva Kaili speaks during the European Book Prize award ceremony in Brussels, on Dec. 7, 2022. AP
Eva Kaili, 44, was "cooperating in an active manner" with the Belgian federal prosecutor's investigation and was requesting to be released under electronic surveillance, her lawyer, Andre Risopoulos, said outside the Brussels courtroom.
The judge, who was only deciding custody terms and not weighing the case itself, was expected to give a decision later in the day.
Kaili, a former newsreader booted from her post as parliamentary vice president after police raids earlier this month, has become the face of the alleged corruption case.
Another of Kaili's lawyers, Michalis Dimitrakopoulos, on Wednesday told reporters she feels miserable, "very troubled" and betrayed by her boyfriend and co-accused Francesco Giorgi.
"Things are difficult, but we have very strong legal arguments to set her free," he said, arguing that Kaili is "not a flight risk and not in a position to destroy evidence."
She was arrested on December 9 as Belgian police, searching a number of addresses, found 1.5 million euros ($1.6 million) in cash. Kaili was charged shortly afterward, and has been in detention since.
Another three suspects -- her partner Giorgi; the head of an NGO allegedly used to funnel money; and a former MEP-turned-lobbyist, all of them Italian -- were also arrested.
All four are charged with "criminal organization, corruption, and money laundering".
A Belgian judge authorized Kaili's arrest and detention on grounds she was allegedly caught red-handed with cash, meaning her usual parliamentary immunity could not be invoked.
The MEP denies receiving money from Qatar in exchange for influencing decisions affecting it in the EU parliament.
Qatar also denies the bribery allegations and has warned that continued linkage of it to the scandal could "negatively" impact ties and its natural gas supplies to the European Union.
Closed door hearing
Thursday's hearing took place behind closed doors.
Greece has opened its own preliminary inquiry into corruption and money laundering.
Kaili's hearing was conducted separately from the three other suspects, who appeared before a Belgian court on December 14.
On that date, the court ordered Kaili's partner Giorgi and the former MEP, Pier Antonio Panzeri, to remain in jail.
The NGO head, Niccolo Figa-Talamanca, was ordered to wear an electronic bracelet to track his movements, but that was suspended on appeal.
Kaili's Greek lawyer Dimitrakopoulos said the day before the December 14 hearing that she did not know of the existence of the cash -- 150,000 euros, according to a Belgian law enforcement source -- found in her home.
Risopoulos told the Belgian newspaper Le Soir that she strongly denied that she had "partially confessed".
He contradicted reports saying she had admitted to asking her father to remove the money uncovered at her address.
Kaili's father was held in custody for two days after the police searches before he was released.
Panzeri's wife and daughter were arrested in Italy under a European warrant and could face extradition to Belgium in January to answer charges.
Apart from the money found in Kaili's Belgian apartment, police discovered 750,000 euros in a suitcase with the father, and another 600,000 at Panzeri's place.
An international union leader, Luca Visentini, said Tuesday he had received 50,000 euros from Panzeri's Fight Impunity NGO.
He said the cash was to cover expenditures for his campaign to take over as general secretary of the International Trade Union Confederation (ITUC).
Visentini, who was detained for questioning during the Belgian police raids but later released while remaining a suspect, was suspended by the union's board on Wednesday pending internal investigations.