1GB Trash. Permission denied.

[HermanAA]

I have almost 1GB Trash in Gnome 'Trash' (Desktop Trash)
I am not allowed to delete it.

I got this Location-info:
trash:///
Location: trash:///_RIKA-DELETE-OK%3F  (a folder in Trash)
          trash:///_RIKA-DELETE-OK%3F/070614 (a file)

I tried to do something about it via the terminal (cmd-line).
But I cant locate 'Trash' (or it's contents).

--how do I delete this trash?

... or how do I find the Trash (and contents)
on the command-line, so I can do something about it.


If I delete via the GUI I get:
Error while deleting.
There was an error deleting PC222481.JPG.
Show more details:
Error removing file: Permission denied
    CANCEL    SKIP-ALL   SKIP

And:
Sorry, could not change the permissions of "P6141423.JPG": Operation not
supported by backend


Herman in Philippines.