<prompt> Translate the following text to SwahiliThat evidence can include corroborative witnesses -- and even a layperson representing himself has the power of subpoena to require testimony.  <response>: Ushahidi huo unaweza kujumuisha mashahidi wa kuthibitisha - na hata mtu wa kawaida anayejiwakilisha mwenyewe ana nguvu ya subpoena kudai ushuhuda. 