Former TV One newsreader Richard Long may face legal action over his Hanover Finance advertisements.
Financial Markets Authority chief executive Sean Hughes said, "It is under consideration".
Long, who fronted One News between 1988 and 2003, promoted Hanover Finance, which in 2008 froze repayments to investors owed $554 million.
His voiceover ads ran several times each night late in 2007 saying, "This One Weather update is brought to you by Hanover, a New Zealand business with the size and strength to withstand any conditions."
The FMA intends to file a civil case in the New Year against some former directors and promoters of Hanover Finance over statements in its December 2007 prospectus.