Question

explain khufia agence

Answer 1

you can tell it intelligence agency too...
An intelligence agency is a government agency responsible for the collection, analysis, and exploitation of information in support of law enforcement, national security, military, and foreign policy objectives. ... Intelligence agencies can provide the following services for their national governments.

Answer 2

spy
detective

RAW
IsIS
MOSAD

these are the names of khufia agencies.
it is used by the groverment authorities to find the enemies activities and detect the most wanted targets.

worlds most dangerous spy agency is "MOSAD" OF Israel