in ‧ ves ‧ ti ‧ ga ‧ to ‧ ry /ɪnˈvestəɡət ə ri, ɪnˈvestɪɡət ə ri $ -ɡətɔːri/ BrE AmE adjective [only before noun]
[ Word Family: noun : ↑ investigation , investigatory; adjective : ↑ investigative , ↑ investigatory ; verb : ↑ investigate ]
relating to investigating something:
the investigatory powers of the Office of Fair Trading