All motions, demurrers, and special pleas shall be made and filed at or before the time set by law, unless time therefor is extended by the judge in writing prior to trial. Notices of the prosecution's intention to present evidence of similar transactions or occurrences and notices of the intention of the defense to raise the issue of insanity, mental illness, or mental competency shall be given and filed at least ten (10) days before trial unless the time is shortened or lengthened by the judge. Such filing shall be in accordance with Rules 23.2 - 23.4.
Ga. Unif. Mun. Ct. R. 23.1