Tell Me Everything - Achievement Flag submissions

Haven't really tried to play through the cases, but the way to finish the game (talking with the constable) doesn't display his dialogue box to arrest the suspect, thus not being able to beat the cases, however all variations of case 1 work correctly, possibly due to the different amount of characters (3 suspects and constable, then 4 suspects and constable). As the game tells you to use 1-4 number keys to select characters, maybe they never put a limit higher than 4 choices.