A a public officer is authorized by a warrant from a Court of Justice to apprehend Z B knowing that ...........

Indian Penal Code (IPC) 1860 Abetment

A, a public officer, is authorized by a warrant from a Court of Justice to apprehend Z, B knowing that fact and also that C is not Z willfully represents to A that C is Z, and thereby intentionally causes A to apprehend C Here.

B abets by instigation the apprehension of C.