perlustration
/ˌpəːlʌˈstreɪʃn/noun
1The action or an act of inspecting, surveying, or viewing a place thoroughly; a comprehensive survey or description.
2The action of examining a document for purposes of surveillance, etc.; specifically the inspection of correspondence passing through the post.
Origin
Mid 17th century; earliest use found in Gilbert Watts (d. 1657), Church of England clergyman and translator. From post-classical Latin perlustration-, perlustratio act of roaming or traversing from classical Latin perlustrāt-, past participial stem of perlustrāre + -iō.