What is the prescribed average norm for random selection of hand search of cabin baggage during pre-embarkation security check?

In India, the Bureau of Civil Aviation Security (BCAS) is the regulatory authority that lays down the standards and procedures for aviation security. According to the standard operating procedures for Pre-embarkation Security Check (PESC), while all cabin baggage must undergo X-ray screening, a percentage of bags must be subjected to a Random Physical Check (RPC) or hand search.

The prescribed average norm for this random selection is one bag out of every ten bags (10%). This measure is intended to act as a deterrent and to detect prohibited items that might not be easily identified through X-ray alone. During periods of heightened security or specific threat alerts, this ratio may be increased by the authorities, but the standard baseline norm remains 1 in 10.