Responses
Rumi is probably good, you know Ai has good NOSE for bad ones Wakita is suspicious too i think, he just hasn't made any move which annoys me. And the reason why bad guys wasn't suspicious of him until now is probably because they never got to see him in cases, he usually acts in the shadows, unseen by them when they're involved. But he really blew up everything in that school trip, even if they brushed it off as someone else who looks just the same the organization should and would investigate anyway logically
Although the timing in the story was unrealistic for a long time now, even the progress of the story itself became unbelievably slow.
Rum should have realized the truth about Conan from the first case he was involved in at the restaurant and made a move or at least knew that he was the one solving the cases for Mori. So why does Conan still able to take his sweet time figuring out whom the silly name belong to!?!?(╯°Д °)╯╧╧