ચોરનો ન્યાય તે મારો ન્યાય.

cōranō nyāya tē mārō nyāya.

Literally: The thief's justice is my justice.
What it means: Demanding that an offender be judged by the strict standards applied to criminals.

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.