Trust your instincts. How often have you read a mystery in which the policeman, private detective, amateur investigator says or thinks that? Lots.
When it comes to reviewers of mystery fiction, especially older books, the instinct I trust is to pay attention to what John Norris at his Pretty Sinister Books blog has to say. So when I read his very fine piece on the Mordecai Tremaine mystery novels of Francis Duncan, I took notice.
First, I cannot urge you strongly enough to follow the link and read the post, all the way through, as the initial paragraphs may tempt you to stop, I almost did. When I finished reading the post, I ordered these three books. How could I resist?