A Long-Open Investigation Needing More Evidence
This page is the CodyCross answer for the clue below from Architectural Styles, Group 1172, Puzzle 3 (Notre Dame Cathedral).
Question is: A Long-Open Investigation Needing More Evidence
and the answer is: COLDCASE
Word Meaning:
COLD CASE — (criminology, law enforcement) A criminal investigation that has not been solved after a considerable time but remains on the books and may be reopened when new evidence appears.
Definitions from Wiktionary.