John 18:2-3
2 Judas, who sold Jesus to his enemies, knew the garden. He knew the place because Jesus and his disciples had met there often. 3 The leaders of the priests and the Pharisees sent a group of soldiers and some officers with Judas. He led these soldiers and officers to the garden. The soldiers had weapons and they carried lights.
18:3The soldiers were Roman soldiers. The officers were Jews who may have worked like police at the temple.