Submit Locked files Created by another user.

System

Hi ,
I am using Teamsite 6.5

I want to clarify certain issues regarding the Locked files.

Actually a Generated file and the DCR is locked by the author "A"

If Author "B" comes and Submit the File created by author "A" i am getting an error message "Nothing that you have selected can be submitted. Please reselect modified or non-private files."

If Editor "A" comes and Submit the File created by author "A", i can submit to staging and production.

If Webmaster "A" comes and Submit the File created by author "A", i can submit to staging and production.

Why the Interwoven System behaves differently only for Author in this way.Is there anything going wrong in the system.Actually my requirement is,a locked file cannot be submiited by others.How to achieve it.

Kindly Advise.

Thanks