investigation

RESEARCH
List of words for the clue investigation from the crossword:
PROBE AUDIT INQUIRY USACIL ARSON ZAHN SCAM MRI INVESTIGATING INQUEST ENQUIRY CID XRAY WIRETAP UPON UNDERCOVER UFO TESTING TAP
WordClue
MARINERamerican space probe
PIONEERamerican space probe
VOYAGERamerican space probe
EXPLORERamerican space probe
ARCHinverted U shape
PROCTORinvigilator