A.T. Robertson Commentary Acts 24:8

"[commanding his accusers to come before thee.] from whom thou wilt be able, by examining him thyself, to take knowledge of all these things whereof we accuse him." — Acts 24:8 (ASV)

From whom (παρ' ου). Referring to Paul, but in the Textus Receptus referring to Lysias.

By examining him thyself (αυτος ανακρινας). Not by torture, since Paul was a Roman citizen, but by hearing what Paul has to say in defence of himself. Ανακρινω is to examine thoroughly up and down as in Lu 23:14.