A terrorism suspect will argue he was not the author of hand-written notes which allegedly outlined plans to target an AFP building and carry out guerrilla warfare in the Blue Mountains.

Sydney man Sulayman Khalid was refused bail on Christmas Eve after police charged him with possessing documents "designed to clearly facilitate an attack".

Denied charges: Sulayman Khalid says he was not the author of notes which allegedly outlined plans to carry out guerilla warfare in the Blue Mountains. Credit:SBS

But Fairfax Media understands the 20-year-old has denied ownership of several pages of notes which contained "random", "crazy" and "hard to read" scribbled words.

A police source confirmed there was no clear plan outlined on the documents but that there was mention of an AFP building as a target and a plan to carry out guerrilla warfare in the Blue Mountains.