Hi All , 

please help me out.

I want to delete the case notes & attachment and I am a user with Read , Create , Edit , Delete  permission.

Once I try to delete attchment raise error Insufficient prevelages.

Once I did it Modify All Data Permission then only I am able to delete the case attachment. But I dont want to give Modify All data permission.

How can be do that , is there any other way to handle this .