What is the prescribed average norm for random selection of hand searc

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

One bag out of every two bags
One bag out of every five bags
One bag out of every ten bags
One bag out of every twenty-five bags
This question was previously asked in
UPSC CISF-AC-EXE – 2020
The correct answer is B. As per BCAS guidelines, the prescribed average norm for random selection of hand search of cabin baggage during pre-embarkation security check is One bag out of every five bags (1 in 5).
Similar to passenger screening, a random hand search of cabin baggage is a mandatory security measure to ensure items not detected by X-ray screening or items prohibited from carriage are identified.
This random check supplements the mandatory X-ray screening of all cabin baggage. The frequency is set by the regulator to maintain a deterrent effect and enhance the overall security process.