Police also searched the offices of the football federation RFEF in Madrid on Thursday, the Barcelona court said, as part of the ongoing inquiry into "possible systemic corruption" within the Spanish refereeing committee.
Spanish football and the RFEF in particular are going through a moment of reckoning amid allegations of sexual abuse against former RFEF chief Luis Rubiales.
The refereeing investigation has now been widened to include Barcelona as a suspect.
Barcelona has denied any wrongdoing, saying in a statement in February it had paid an external consultant who supplied it with "technical reports related to professional refereeing", which it said was a common practice among professional football clubs.
According to judge Aguirre, Negreira was responsible for ranking and evaluating the referees.
Persons:
Albert Gea, Luis Rubiales, Rubiales, Jenni Hermoso, Joaquin Aguirre Lopez, Jose Maria Enriquez Negreira, Aguirre, Negreira, Fernando Kallas, Andrei Khalip
Organizations:
Football, FC Barcelona, Rights, Barcelona, Reuters, Thursday, Police, RFEF, Real Madrid, Thomson
Locations:
Barcelona, Spain, Rights MADRID, Spanish, Madrid, Sydney, RFEF