Academic dishonesty after acceptance of graduate school
The graduate school, or whoever sets local regulation, can do whatever they want.  But most likely:

No information will be sought beyond a transcript.
The graduate school will not find out about misconduct not on the transcript.
If the graduate school finds out, and any information you provide agrees with information provided by your previous institution, the graduate school will consider the previous institution's actions to have settled the matter.

If you disagree with your previous institution's findings, instead of saying &quot;Y happened&quot;, say &quot; found that X happened, but I found that Y happened.&quot;  This way it is clear you are not misleading anyone.