How does a student's misconduct history carry across to other courses (if it does)? Is there a difference between minor and major offences? I have a general inquiry regarding the impact of past misconduct in different courses of study.

To provide an example: if a student takes a course and is removed because of poor performance (or even if they are not removed and have had a warning) could this be used against him/her in a different course in the future? Or does the code of conduct for each university specify that each course constitutes a different "chance". What about when it is not about removal, and is about academic misconduct or general behavior? 

In cases where the gap between both courses is quite high (say a decade), would it be safe to presume that misconduct as (for example) a teenager could not be used without good reason in the future, or could it be waived all-together?
My UK university centrally tracks all academic offences, both major and minor, and I think this is pretty common. We are not allowed to release information about academic offences to employers or other universities. If the new course is at a new university, it is up to the applicant to inform the university. There may be a question on the application and the applicant must answer it truthfully. If the new course is at the same university, it depends on how well they track things, in this case, how well they tracked things in the past.

Past occurrences of academic misconduct are only used in deciding penalties for current occurrences of academic misconduct. Hopefully, a student would not commit academic misconduct again. If they did, the board may have discretion to ignore some past events if a large amount of time has elapsed. This is going to be specific to each board. Even if the board is allowed, discretion, they may not exercise it.