 Afterwards, Cherid appeared in Spain in 1976.He was one of the far-right mercenaries hired by Spanish secret services, then part of SECED to take part in the 1976 Montejurra massacre against left-wing Carlist Party.After that, Cherid remained related to the members of the intelligence services belonging to the Spanish secret services and security forces that organized an illegal war against ETA in the French Basque Country, under different denominations (Antiterrorismo ETA, Batallón Vasco Español or AAA death squads) during Union of the Democratic Centre administrations.