Steven, is this procedure definition taken from text editor where
you designed it or extracted from database? Couldn't your tool's
default settings convert it on compilation for dialect 3 to something
like

CREATE PROCEDURE "DELETECONTACTTEMP" (
"EMPLOYEE" CHAR (6))
AS
BEGIN
DELETE FROM "CONTACTTEMP" WHERE "EmpID" = :"EMPLOYEE";
SUSPEND;
END

which results in case sensitivity of identifiers?

Best regards, Alexander V.Nevsky