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Defence counsel representing Jordi TurullJosep Rull and Jordi Sànchez are putting the finishing touches to the final pre-trial filings they'll present today to the Supreme Court. Among them will be their list of requested witnesses. Sources have confirmed to El Nacional that this list will include Spanish king Felipe VI and exiled Catalan president Carles Puigdemont.

If the chamber, presided by Manuel Marchena, accepts the requests, the witnesses could give evidence either in person or by video link. Normally, when it comes to high-status witnesses, they will use the second option. This would be the case for the king.

But the circumstances are different when it comes to Puigdemont. He's indicted in the same case they now want him to testify in as a witness, and although the international arrest warrants against him have been withdrawn, the same isn't true in Spain. Asked about the possibility of Puigdemont testifying, Spanish interior minister Fernando Grande-Marlaska said: "It's very easy to answer. For this interior ministry, the police and the Civil Guard, there is a national arrest warrant for this person. You can draw your own conclusions".

The lawyer Jordi Pina, representing the three political prisoners named above, has this afternoon held a press conference to publically present his position.

All the filings will be made electronically by this evening, except for Santi Vila, who is expected to make his submission overnight or early tomorrow morning.

Before submission, the documents have been kept under great secrecy without leaks. Other than Pina's announcements, we only have details from Joaquim Forn, Jordi Cuixart, and Oriol Junqueras and Raül Romeva (all links in Catalan; the first two include copies of the filings in Spanish).