Police said the detainee, Abdur Rashid, was 'baitul maal' (treasury secretary) of Chapainawabganj municipality unit of Islami Chhatra Shibir.

However, Rashid's accomplice managed to flee with the video camera.

Rashid was handed over to Shibganj police. Police later raided his house and seized several objectionable books and documents.

Police said Rashid would be produced before a court today with a remand petition.

Rashid is a first year student of Radhakantapur College and hailed from Pitalitala under Shibganj upazila of the district.

According to a top army official of the camp, an army sentry noticed that Rashid and his associate were taking video footages of the army camp.

"As they were challenged the man, who was shooting, ran away with the video camera," added the official.