Mishnayos Shekalim Perek 7 Mishnah 5

Originally, the court would seize collateral from one who found such an animal, as security until he would bring with it the libations associated with this offering, as if the found animal were his own and he had committed himself to bring the libations. This brought about a situation in which those who found the animals began leaving them where they found them, and absconding, so as not to become liable for the libations. The court therefore instituted that the libations accompanying these offerings would come from public funds, that is, from the Temple treasury.

בָּרִאשׁוֹנָה הָיוּ מְמַשְׁכְּנִין אֶת מוֹצְאֶיהָ, עַד שֶׁהוּא מֵבִיא נְסָכֶיהָ. חָזְרוּ לִהְיוֹת מַנִּיחִין אוֹתָהּ וּבוֹרְחִין. הִתְקִינוּ בֵּית דִּין שֶׁיְּהוּ נְסָכֶיהָ בָּאִין מִשֶּׁל צִבּוּר: