DMS - Restrict deletion of attachment through authorization Object

Dear SAP Team,

Kindly let me know how to have deletion restriction of attachments using authorization objects. I have tried with below authorization objects by making activity - deletion "06" unchecked wherever applied, but it is not working,

C_DRAW_TCD
C_DRAD_OBJ
C_DRAW_DOK
C_DRAW_TCS
C_DRAW_STA

Please support on this regard.