(1)Section 256(4) of the Sentencing Code (limits on extension period in term of extended sentence of detention) is amended as follows.
(2)In paragraph (b)—
(a)in sub-paragraph (i), at the end insert “(unless sub-paragraph (iii) applies)”;
(b)in sub-paragraph (ii), at the end insert “(unless sub-paragraph (iii) applies)”;
(c)after sub-paragraph (ii) insert—
“(iii)10 years in the case of a serious terrorism offence for which the sentence is imposed on or after the day on which section 16 of the Counter-Terrorism and Sentencing Act 2021 comes into force.”
(3)In the words after paragraph (b), for “and “specified terrorism offence”” substitute “, “specified terrorism offence” and “serious terrorism offence””.