perquisition
/ˌpəːkwɪˈzɪʃn/noun
1Chiefly Law. The acquisition of something otherwise than by inheritance. Compare perquisite. rare.
2A thorough or diligent search, especially one made officially; careful investigation or inquiry; (Law ) a search of property to find a person, incriminating documents, etc.
Origin
Late Middle English; earliest use found in Rolls of Parliament. From post-classical Latin perquisition-, perquisitio inquiry, research, purchase, acquisition, thing acquired, profit from classical Latin perquīsīt-, past participial stem of perquīrere + -iō.