▼tn BDAG 326 s.v. ἐμφανίζω 3 has “to convey a formal report about a judicial matter, present evidence, bring charges…ἐ. περί τινος concerning someone 25:15.”

▼tn Grk “about whom.” Because of the length and complexity of the Greek sentence, the relative pronoun (“whom”) has been replaced with a personal pronoun (“him”) and a new sentence started in the translation at the beginning of v. 15 (where the phrase περὶ οὗ [peri hou] occurs in the Greek text).

▼tn BDAG 516 s.v. καταδίκη states, “condemnation, sentence of condemnation, conviction, guilty verdict…αἰτεῖσθαι κατά τινος κ. ask for a conviction of someone Ac 25:15.”