וְכֹל֩ אֲשֶׁ֨ר לֹֽא־יָב֜וֹא לִשְׁלֹ֣שֶׁת הַיָּמִ֗ים כַּעֲצַ֤ת הַשָּׂרִים֙ וְהַזְּקֵנִ֔ים יָחֳרַ֖ם כָּל־רְכוּשׁ֑וֹ וְה֥וּא יִבָּדֵ֖ל מִקְּהַ֥ל הַגּוֹלָֽה׃ (ס)
און איטלעכער װאָס װעט ניט קומען אין דרײַ טעג, לױט דער עצה פֿון די האַרן און די עלטסטע, זאָל זײַן גאַנצער פֿאַרמעג זײַן חרם, און ער זאָל אָפּגעשײדט װערן פֿון דער עדה פֿון גלות.
Mishneh Torah, The Sanhedrin and the Penalties within Their Jurisdiction
Similarly, at all times, a court has the prerogative to declare money belonging to others as ownerless. It may destroy those funds or give them to whomever they see fit to close any breaches in the faith and to strengthen its observance or to penalize a stubborn and difficult person. The Book of Ezra 10:8 states: "Whoever fails to come in three days according to the advice of the officers and the elders will have all of his property confiscated." From this we learn that when a court declares property ownerless, their declaration is effective.