John 18:19 New English Translation

¹⁹While this was happening,^[a] the high priest questioned Jesus about his disciples and about his teaching.^[b]

John 18:19 tn The introductory phrase “While this was happening” is not in the Greek text. It has been supplied in the translation to clarify the alternation of scenes in the narrative for the modern reader.
John 18:19 sn The nature of this hearing seems to be more that of a preliminary investigation; certainly normal legal procedure was not followed, for no indication is given that any witnesses were brought forth at this point to testify against Jesus. True to what is known of Annas’ character, he was more interested in Jesus’ disciples than in the precise nature of Jesus’ teaching, since he inquired about the followers first. He really wanted to know just how influential Jesus had become and how large a following he had gathered. This was of more concern to Annas that the truth or falsity of Jesus’ teaching.

New English Translation (NET)