Rule 270 Additional Testimony

A judge can allow someone to bring up new evidence or call a witness even after both sides have finished presenting their case. This can happen if the judge believes it is needed for the case to be decided fairly.

However, if a jury is deciding the case, this only works up until the jury gives its verdict. Once the jury has made its decision, no new evidence can be added, especially if the topic is something the two sides disagreed about.