In the Workflow transition properties you can set diverse permissions restrictions like this:
- jira.permission.comment.group=group
- jira.permission.comment.denied=true/false
- jira.permission.edit.group.1=group1
- jira.permission.edit.group.2=group2
- jira.permission.modifyreporter.user=username
- jira.permission.delete.projectrole=10000
- jira.permission.subtasks.delete.projectrole=10000
- jira.permission.close.user=username
- jira.issue.editable=false
…
You can see more permissions and terminology in this link
