under investigation

: in or into a position below or beneath something

: below or short of some quantity, level, or limit

: in or into a condition of subjection, subordination, or unconsciousness

: below or beneath so as to be overhung, surmounted, covered, protected, or concealed by

: subject to the authority, control, guidance, or instruction of

: receiving or undergoing the action or effect of

: lying or placed below, beneath, or on the ventral side

: facing or protruding downward

: lower in rank or authority : subordinate

: to observe or study by close examination and systematic inquiry

: to make a systematic examination