1,768. If the Husband Has Proof That The Get Was Forged
Hilchos Geirushin 7:9
If an agent said that a get was written and signed in his presence but the husband brought proof that it was forged, then the get is invalidated. This is because the Sages only accepted the testimony of one person against a husband’s protest that was not accompanied by proof. If his testimony is contradicted by witnesses, his words are not accepted.
Hilchos Geirushin 7:10
The rules that apply to Israel also apply to rivers in Israel and islands in the Mediterranean within the boundaries of Israel. Islands outside these boundaries follow the rules for lands outside of Israel. The boundaries of Israel are detailed in Hilchos Terumos. When it comes to a get, the rules for Israel also apply to Babylonia.