Sanz is due to appear before the judge at 12.00 this Thursday. Two hours earlier, Sebastián Vega will testify about his work as head of Ceuta's Local Police during the events under investigation. Their statements will address what officials knew before the entry and how they handled that information.
The court is examining whether Sanz passed on CNI information about a possible assault, as he said in his resignation letter. The testimony forms part of María Tardón's investigation into the events of 30 and 31 July.
The warning reached Ceuta's Government Delegation before the mass entry into the city.