(a) whether the various intelligence agencies have alerted the Delhi Police on the use of red-beacon fitted cars by terrorists as reported in the `Statesman` dated April 19, 2002;
(b) if so, whether the Delhi Police has since taken any steps to trace all the red-beacon fitted cars in and around Delhi;
(c) if so, the details thereof;
(d) whether the letter heads of the Home Minister were stolen and used as authorisation for red-beacon by some executives in Delhi; and
(e) if so, the facts thereof and the steps taken to check such act in future?