Where can I get the salary certificate of UNODC Auxiliary Police?

You should issue a certificate of income to the unit that signed the labor contract with you.

According to Baidu Encyclopedia, the salary certificate of the auxiliary police of the Anti-Drug Office should issue the income certificate to the unit that signed the labor contract with you. The general income certificate is issued in the personnel department of the unit and stamped with the official seal of the personnel department.

Auxiliary police, that is, auxiliary police