You know, what ran suspects in this chapter (That shinishi is helping conan) is what i would have expected her to think since the fist time that happened. I think is more logical that shinishi been conan. I understand that when the first chapters were made, there were almost no cellphones but...
I remember the first time i watched this episode. Before i watched i believed that Gin and Vodka wouldn't be a big threat, like the kind of villains that always lose to the protagonist like snake of magic kaito, but after this i was really afraid of Gin.