[ptsal]

Are the citizen members of the grand jury selected from a pool of voters inside the District or from a designated radius within driving distance?

Anyway I cut it, the potential pool of grand jury members does NOT look like a reasonable cross section of the nation, at large.    /big concern

[Lurking Libertarian]

Are the citizen members of the grand jury selected from a pool of voters inside the District or from a designated radius within driving distance?

Just the District itself.