The Central Bureau of Investigation (CBI) is, understandably, extremely wary of allowing unknown people access to its office. That is why its personnel keep a close watch on those who purport to be journalists; allowing only familiar faces who cover the beat to stay behind after the day's business is done for strictly off-the-record briefings. Last week, the reasons for their suspicions became amply clear when an unfamiliar person sought to mingle with the journalists after business hours. When questioned, he mumbled something about representing a TV channel called "Network One", and even produced a card to this effect. Since the press officers had never heard of this channel, their suspicions were aroused and he was immediately escorted off the premises and out of the gate. It turns out that interested parties who are under investigation often resort to such measures to elicit information from CBI.