The lawyer for an Irishman wanted in the UK on manslaughter charges claims there is not enough information to extradite him.
Eamon Harrison from Mayobridge, County Down is fighting extradition to England where he's wanted in relation to the discovery of 39 bodies in Essex.
Mr Harrison was arrested at Dublin Port a few days after the bodies were found on October 23rd.
Police in the UK believe he brought the container to a port in Belgium, before it was transported to England.
They want to charge him with 39 counts of manslaughter as well as charges relating to human trafficking and illegal immigration.
At a previous hearing, his lawyers raised concerns about the lack of detail in the warrant for his arrest.
Further clarity was provided today, but his lawyer has raised concerns about the source of that detail and what she claims are its shortcomings.
The information was provided by the Crown Prosecution Service. She claims it ought to have been the authority that issued the warrant.
She also submits that it falls short of what is required because there is nothing to say what dangerous act he is alleged to have committed and no mention of any allegation that he put the victims in the container – or even knew they were in it.
Reporting from Frank Greaney at the High Court