@Tig
Yes that is very nearest π
From an old french TV Serial "5 dernières minutes" (Last five minutes) (like Colombo)
And the gimmik was at the end "Mais bon sang, c'est bien sΓ»r" when the Police superintendants Bourrel and his loyal Cabrol has found the solution of the crime! (It's Cabrol who said the gimmick π
http://membres.lycos.fr/jchsaunier/hpbimg/BOURREL.jpg
remake in comics by Gotlib : Bougret & Chabrol π
http://img.over-blog.com/388x408/0/31/92/83/images16/RAB-Bougret-Charolles-bye.jpg
And for my little suggestion above no idea?