After judgment is announced but before it is entered, a trial judge may reopen the trial, if the judge feels that more evidence needs to be heard on an issue. However, this discretion must be exercised “sparingly and with the greatest care so that fraud and abuse of the Court’s processes do not resultâ€:
https://www.canlii.org/en/on/onsc/doc/2016/2016onsc6158/2016onsc6158.html
