diff --git a/lib/C3GovConnector.php b/lib/C3GovConnector.php
index c5d0d86..99ba657 100644
--- a/lib/C3GovConnector.php
+++ b/lib/C3GovConnector.php
@@ -23,6 +23,15 @@ class C3GovConnector
         return $result->fetch_assoc();
     }
 
+    public function getCos($testId){
+        $sql = "SELECT * FROM cos WHERE testId = ?";
+        $stmt = $this->dbConnection->prepare($sql);
+        $stmt->bind_param("s", $testId);
+        $stmt->execute();
+        $result = $stmt->get_result();
+        return $result->fetch_assoc();
+    }
+
     public function __destruct() {
         $this->dbConnection->close();
     }
diff --git a/public/cos.php b/public/cos.php
new file mode 100644
index 0000000..94009e5
--- /dev/null
+++ b/public/cos.php
@@ -0,0 +1,16 @@
+<?php
+
+include("../lib/C3GovConnector.php");
+
+use lib\C3GovConnector;
+
+$testId = $_POST['testId'] ?? null;
+//$refNo = $argv[1] ?? null;
+
+if (!$testId) {
+    echo( json_encode( [ 'error' => 'No test id provided' ] ));
+}
+else {
+    $c3gov = new C3GovConnector();
+    echo( json_encode($c3gov->getCos($testId)));
+}
\ No newline at end of file