'You have to admit,’ ventured Amadieu, tugging at his moustache, ‘that your method is impossible to apply in a case like this one. The chief and I were arguing about it earlier.’
Well, well, the chief really was taking a close interest in the case!
‘What do you mean by my method?'
'You know better than I do. Usually, you get involved in people’s lives; you try to understand their thinking and you take as much interest in things that happened to them twenty years earlier as you do in concrete clues. Here, we’re faced with a bunch about whom we know pretty much everything. They don’t even try to put us off the scent. And I’m not even sure that, in private, Cageot would even bother to deny having killed.'