It is not likely that Pilate asked a crowd to come. The crowd was probably still there waiting to see what would happen to Jesus. AT: "the crowd that was still there" (See: [[rc://en/ta/man/translate/figs-explicit]])
"I have questioned Jesus in your presence, and." It is implied that they were witnesses to the proceedings. AT: "I have questioned Jesus with you here as witnesses, and" (See: [[rc://en/ta/man/translate/figs-explicit]])