It will depend on the allegations in terms of what the appropriate response or defense to such allegations would be in an academic misconduct case at a college or university. In cases, for example, involving plagiarism, it depends on how the school alleges that plagiarism took place. If it was due to a school's reliance on a software checker to indicate that there was plagiarism, for example, it will be at times necessary will in all instances to respond accordingly. In some instances, it may require a submission expert testimony of sorts to respond to the fact that the school is incorrect in its submission that plagiarism took place.
It can be more nuanced in the sense of whether plagiarism was intentional or unintentional in terms of whether a school a student would be in violation of the school's policy. In cases involving, say, cheating, or more general allegations of academic misconduct, it will depend on the specific case. It may be a matter of presenting emails, text messages, social media posts, when applicable to the circumstances, witness statements, getting witnesses to speak to the circumstances in a person's defense. It's countless in terms of what needs to be presented to respond to academic misconduct allegations.
There's no overkill in such cases because unfortunately, so much is at stake. Academic misconduct allegations can affect a student both in the short and long-term. An experienced attorney advisor experience in academic misconduct cases can be your best ally in terms of the best way to respond to the specific allegations and also, as importantly, to try to ensure a fair process with the school. They should be involved from the case as early as possible in the process.