In December 1963, Jesús was made a special pioneer, and, in the meantime, his fourteen-year-old sister came to live with him in Castellón. On April 2, 1964, police forced their way into his home during his absence and, without an official search warrant, they ransacked the place and confiscated Bibles and Bible literature, as well as the keys to the house. When they raided the home, they found regular pioneer Florentino Castro there and arrested him. While they were searching, seventeen-year-old regular pioneer Juan Pedro Ruiz turned up at the house and he was arrested. Because there was not sufficient time to appeal the fines imposed on these two brothers, they had to spend twenty days in prison.

The authorities were pitiless in their persecution of this group of young people, returning to the attack in September 1964, when they again arrested Florentino Castro and Juan Pedro Ruiz. For “propagating ideas and proselyting activities” of the “Protestant sect Jehovah’s Witnesses,” they were fined 5,000 pesetas each.