(Based on how-many-witnesses-have-to-concur)
I have never heard of a reference to an archive or a secretariat or something to process the paperwork. THere also was no connection between different courts and no "files/cases".
The Jewish Law has no Police (for filing and investigation) and no Prosecution Office - everybody goes straight to the court and incriminates his fellow Jew.
If a case falls because of inconsistencies of the witnesses or rejecting a witness or other "technicality", the witnesses can re-group, or learn the questions and the tricks.
As there's no tracking of the cases and no "locality" (obligation to stick to a certain court based on one's living address) witnesses can wander from one court to another in the same city or in different cities.
How many times can the witnesses, or different groups of witnesses come to the court for the same crime, or to different courts?