The CaseBase signals are based on case annotations prepared by the CaseBase editors. They are derived from both the procedural history of a case and the subsequent judicial consideration of a case. The signals are as follows.

Signal	Precedence	Summary	Explanation
	1	Negative treatment	Warning – Negative treatment indicated. A negative (red) signal is given to decisions which have been subsequently reversed, not followed, disapproved or overruled.
	2	Cautionary treatment	Caution – Questioning or distinguishing treatment indicated. A cautionary (yellow) signal is given to decisions which have been subsequently distinguished, explained, questioned or varied.
	3	Positive treatment	Positive treatment indicated. A positive (green) signal is given to decisions which have been subsequently applied, approved, followed or affirmed.
	4	Neutral treatment	Neutral or citing treatment indicated. A neutral signal is given to decisions which been either considered or cited (also 'referred to' or 'discussed').
	5	Citation information	Link to CaseBase entry. A citation information signal is given to decisions for which there is only citation information available.

Note: The CaseBase signal for a primary case is re-determined whenever a new annotation is added to that primary case.