Albert Barnes Commentary Acts 25:5

"Let them therefore, saith he, that are of power among you go down with me, and if there is anything amiss in the man, let them accuse him." — Acts 25:5 (ASV)

Which among you are able. Enjoy all the advantages of a just trial, and exhibit your accusations with all the learning and talent in your power. This was all that they could reasonably ask from him.