Forum:Canon policy: Items on which policy is unclear

In the Tardis:Canon policy under the "Items on which policy is unclear", in which it states:
 * The relevance of The Doctor Who Technical Manual, the in-universe history presented in part of The Terrestrial Index, The Doctor Who Monster Book and similar items and their suitability for use in creating and contributing to articles in the TARDIS Index File is unclear at this time, and up for discussion.

It's actually been in the policy from the beginning, I'm just not sure why these three are unclear on the canon front. Should this whole paragraph just be removed? Or should it be placed in secondary sources or...something else? --Tangerineduel / talk 14:32, March 7, 2011 (UTC)