Hansaria, J.:- This habeas corpus proceeding is on behalf of C. Bijoy Singh against whom an order of detention under the provisions of the National Security Act, 1980 - hereinafter the 'Act' - was passed on 7-12-1982, as the same was deemed necessary to prevent him from acting in any manner prejudicial to the security of the State and the maintenance of public order. The grounds which led the detaining authority to arrive at the above subjective satisfaction read as below:-

"1 (a). That you as a member of "RED BRIGADE" which is an outlawed organisation have committed the following criminal offences to further the cause of your outlawed organisation :-

(i) Armed robbery of Rs. 2,55,000/- from Dasharath Bhia M. Patil of Bidi Company on 8-7-1980 at about 9.45 AM.

(ii) Attacking the Meghalaya Police Post Bishenpur in the night of 1-8-80 to snatch arms.

(iii) Armed robbery of Rs. 1,97,000/- from PWD office, Shillong on 1-6-81".

It is thereafter mentioned that the detenu was given some documents which include extracts of his statement dated 29-11-82 and of 4 (four) other persons. Ground 1 (b) states that he was arrested by the police on 28-11-82 in connection with F. I. R. No. 537 (