Former Barcelona president Josep Maria Bartomeu has been "provisionally released" after he was arrested following a raid on the club's offices.
Bartomeu and ex-director Jaume Masferrer exercised their right not to testify on Tuesday when answering to charges of unfair administration and corruption of business.
The Superior Court of Justice of Catalonia (TSJC) confirmed the case was still open.
"The court of instruction 13 of Barcelona, within a case opened in May 2020 for crimes of unfair administration and corruption in business, has taken a statement today from the former directors of FC Barcelona, Josep M Bartomeu and Jaume Masferrer, as investigated," a TSJC statement read.
"The two investigated, who today have gone to court, have availed themselves of their right not to testify and the magistrate has agreed to provisionally release them.
"The case, of which the summary secrecy has been lifted, is still open."
In a statement tweeted on Monday, Los Mossos d'Esquadra confirmed "several searches are being carried out" at Barca's club premises by its unit dedicated to the investigation of economic crimes.
Bartomeu was taken into custody as part of the probe, along with the club's current CEO Oscar Grau.
Barca's head of legal services Roman Gomez Ponti and former director Jaume Masferrer were also arrested.
The investigation is thought to centre around the "Barcagate" scandal, when Barcelona allegedly paid social media company 13 Ventures to smear celebrated club names such as Lionel Messi, Pep Guardiola, Xavi, Gerard Pique and ex-president Joan Laporta during Bartomeu's leadership.
Los Mossos searched Barca's offices in July 2020 in relation to the claims, although the club hired Price Waterhouse Coopers to investigate the matter and the global auditing firm found in their favour.
Nevertheless, board members Emili Rousaud, Enrique Tombas, Silvio Elias, Josep Pont, Maria Teixidor, Noelia Ronero and Jordi Calsamiglia resigned amid the damaging fallout.
Last October, Bartomeu stepped down as Barcelona president following a close season when Messi tried to leave the club and ahead of a vote of no confidence in his leadership.
Laporta is favourite to return for a second stint as president, with elections taking place this Sunday – the race now staged against the backdrop of yet another turbulent episode for the LaLiga giants.
