The Clue! Cheats

When Investigating a building, your suspicious rating will increase when time passes by (and accuracy rating will also increase, providing you with more info). To let the accuracy raise, but the suspicious stay the same (0%), hit enter on 'Investigate', then you see the message:
''A police patrol passes by'', quickly hit enter again to stop investigating, now hit 'Investigate' again, and follow the above steps. This way, time will stay the same, as the police patrol will pass by at the same hour over and over.
Now, you'll easily get accuracy at 100%, and suspicious at 0%, so nobody will/can tell you were there.