Fidelius, Surveillance, Means of Communication (was Re: Cedric and Pettigrew)

[Pet]

No: HPFGUIDX 91843

Annemehr wondered:
> > I don't know how the WW at large found out, but since OoP I wonder if
> > DD hadn't had one of those "reliable methods of communicating" with
> > the Potters, or some sort of trouble detector.  In a world with
> > sneakoscopes and foe glasses, and magic two-way mirrors, I would think
> > he would have.
 
Ffred's reply:
> Only problem with the theory of the "surveillance device" is to
> wonder who's watching it, and why. Everyone believes that the Potters 
> are safely protected by the Fidelius. If that's so, then having someone 
> sitting in the same room as a trouble detector could look like overkill. 
> And DD definitely _does_ trust the Fidelius, otherwise he wouldn't be 
> using it to protect Grimmauld Place.
 
Annemehr's reply:
> Grimmauld Place is protected by more than just the Fidelius charm, and 
> I still think it'd be reasonable for DD to keep an eye on the Potters 
> even though they had a Secret Keeper.
 
Pet here: (first post warning, be gentle)
So, er, what about a portrait? It`s not entirely unlikely that the Potters had a portrait on their walls that acted as a messenger between them and Dumbledore. We've learned that this works even under the Fidelius Charm for Grimmauld Place, so why not for the Potters?  The portrait would make an excellent and reliable eyewitness for DD that Voldemort is indeed 'gone'.