I have a feeling Partridge was not really BA.
I think red john was using him by hypnotism. When jane says "you really dont know do you" and Partridge looked honestly clueless. I think jane was eluding to that.
And his arm being burned is dumb. Seems like an obviois silly way to cover up a tattoo.
-The BA did not do that, red john did for misdirection.
-The same misdirection that happend when kira tinsley gave away the tattoo clue. Tinsely was too obvioise and
easily caught for being a red john spy. Unles she had alteris motives like misdirection.
-Sophie miller is more misdirection. Red john seeing janes shrink and having sessions then torturing and chop her head off is a very loaded clue. Red john told jane to look for the nuerosis of the BA suspects in a coded fashion.
Again misdirecting at the least.
-The DVD is janes misdirection. He finally he becoming red john to catch him.