Section 6. Accessory. —

Any person who, having knowledge of the commission of the crime of terrorism or conspiracy to commit terrorism, and without having participated therein, either as principal or accomplice under Articles 17 and 18 of the Revised Penal Code, takes part subsequent to its commission in any of the following manner: (a) by profiting himself or assisting the offender to profit by the effects of the crime; (b) by concealing or destroying the body of the crime, or the effects, or instruments thereof, in order to prevent its discovery; (c) by harboring, concealing, or assisting in the escape of the principal or conspirator of the crime, shall suffer the penalty of ten (10) years and one day to twelve (12) years of imprisonment.

Notwithstanding the above paragraph, the penalties prescribed for accessories shall not be imposed upon those who are such with respect to their spouses, ascendants, descendants, legitimate, natural, and adopted brothers and sisters, or relatives by affinity within the same degrees, with the single exception of accessories falling within the provisions of subparagraph (a).