--- a/heuristics/valueHeuristics.php
+++ b/heuristics/valueHeuristics.php
@@ -2,9 +2,27 @@
         - large contract value
           - chi-square test for outliers / standard dev from mean/median
           - percent of total contracts for supplier/agency
-
+   $heuristics["METADATA_DUPLICATED_DESCRIPTION"] = Array(
+	"description" => "unusual value for time of year");
+function METADATA_DUPLICATED_DESCRIPTION($cn)
+{
+    	$averageContractPeriod = getAverageContractPeriod();
+	$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']);
+	$days = intval($diff / 24);
+	return ($days > 45 ? 1 : 0);
+}
 
         - peculiar value
         - Just under 80k, amplified if other contracts with same supplier are just under
     - unusual variation amount
         - absolute value; large reductions as well as large increases
+        
+           $heuristics["METADATA_DUPLICATED_DESCRIPTION"] = Array(
+	"description" => "unusual value for time of year");
+function METADATA_DUPLICATED_DESCRIPTION($cn)
+{
+    	$averageContractPeriod = getAverageContractPeriod();
+	$diff = strtotime($cn['contractStart']) - strtotime($cn['publishDate']);
+	$days = intval($diff / 24);
+	return ($days > 45 ? 1 : 0);
+}