תלמוד על סוטה 1:1

MISHNAH: In civil suits, anybody³³Every judge. may argue for credit or debit. In criminal suits, anybody may argue for acquittal but not everybody may argue for conviction³⁴As explained in Mishnah 5..
In civil suits, one who argued for credit may argue for debit and one who argued for debit may argue for credit; but in criminal suits one who argued for conviction may argue for acquittal but one who argued for acquittal is barred from arguing for conviction.