An audiëntieblad (literally: audience sheet or audience paper) are the transcripts of court sessions, created by court clerks. Audiëntiebladen record the cases that were heard on a day, including continuances. Some include the verdicts, but sometimes the verdicts are kept in a different series.
You can find audiëntiebladen in the series of court records of the local and district courts. Court records older than 75 years are typically kept at the regional historical centers in the provincial capitals. Most of these records are not online, though some archives make them available via scanning-on-demand. They are rarely indexed, though sometimes you can find a contemporary index among the court records.