 He was also president of the electoral court of law and a councillor and envoy of the prince elector.In 1670, Böckelmann moved to teach at Leiden, where he had lasting influence by introducing the new "methodus compendiarium" - a teaching method based no longer on the Corpus Iuris Civilis itself, but on shorter summaries.One of these, his "Compendium Institutionum", was in use up until the 19th century.