What was the US Supreme Court case Kent v US about?

Kent v US 1966 is a famous court case involving juveniles and their rights. The decision and outcome of the case included the facts that:

1) there must always be a hearing in the matter of waiver of jurisdiction

2) there must always be assistance of counsel in a hearing of waiver of jurisdiction

3) the plaintiff's counsel must have access to all social records

If the judge determines that a waiver of transfer is the right answer there must be a statement of facts based on a full investigation, including a statement of the judge's reasons for the waiver.

A waiver of jurisdiction is basically the decision to allow a juvenile to be tried as an adult in criminal court.