Can you restrict who can made changes in Change set?
One answer
I believe there is two parts to this question:
a) Can we restrict a user who is not the owner from attaching the change sets to a work item? No.
b) Assuming you are using the code review tool can we show only change sets attached by the owner? No. By the way, you could select the appropriate change set (based on the change set comment) from the drop down at the top of the diff pane.