The clues are there to be found

Rating: 9/10 (29 October 2006)

My solution to the Inside Man:
 Frazier's first dialogue of the film, "If this 140 grand doesn't show up somewhere soon things can get rough. Eventually it'll go away. Then I'll make first grade." Does he know something is going to change soon?  Frazier's boss was on vacation. Interesting scheduling for the robbery.  "I'm not calling him yet, it doesn't feel right." How does Frazier reach this conclusion immediately when he arrives at the bank?  When White and the mayor drive up to the bank unannounced, why does Frazier immediately get into the vehicle?  "Come on in." Why does Dalton so easily entertain a new plan from White when his original plan is working right on schedule?  "I'm making detective first grade. Things aren't all they appear to be." The most explicit line of the movie indicating that Frazier knows more than he tells.  Frazier attempts to stop the storming of the bank at the last minute. When Darius overrules Frazier's demand, Dalton curses and is forced to release the hostages immediately. This appears to be the one element of robbery plan that deviates from Dalton's timing. When the hostages are all lying on the street, Frazier is looking for one he can recognize. Why is he doing that if he has never seen any of the robbers' faces?  Frazier and his partner enter the bank exactly when Dalton is ready to leave. How can this timing be so exact? Why does Dalton risk walking past an experienced police detective while looking so suspicious (ball cap, sunglasses and large satchel)? Why doesn't Dalton just wait in the storeroom until Frazier is gone?  After removing the diamond from his pocket in the last scene, Frazier exclaims, "Son of a bitch." Was this his realization that the man he bumped into was the robber, or simply surprise that Dalton had given him the diamond?"  And finally the strange case of Peter Hammond. Peter is the bank employee who attempts to hide his cell phone and gets beaten up by Dalton. We first see Hammond just before the robbery begins having a hushed conversation with the "Rabbi" who is later revealed as one of the conspirators. We also learn in the final bank scene that he is a bank officer with authority to access the safe deposit boxes. When the robbers collect all the cell phones, the female robber immediately identifies Peter for not dropping his phone in the bag. Are we to assume that every other one of the 50 hostages placed a phone in the bag and only Peter did not? Hardly believable. Peter was singled out too quickly and conveniently. And why is a bank officer's ring tone set to hip hop? It is clearly not his real phone. And finally, why does Dalton beat up Hammond when he is so careful not to harm any other hostages? This whole episode was a setup to provide Peter with a cover to divert suspicion away from him.
My conclusion: Hammond is the inside man. As a bank officer with access to the safe deposit boxes, Hammond is clearly the source of information regarding the secret of Box 392. Frazier, Dalton, White and Hammond have conspired to plan this robbery, each for their own reasons.