21.—(1) This article applies where by virtue of article 19(1) or 20(1) an employee of a 2004 Act authority is carrying out an SFRS function in Scotland.
(2) Section 25 of the 2005 Act (powers of authorised employees in relation to emergencies) applies in relation to an employee of a 2004 Act authority who is authorised for the purposes of section 44 of the 2004 Act (powers of fire-fighters etc. in an emergency etc.) as if the employee of the 2004 Act authority were an authorised employee (within the meaning of section 25(1) of the 2005 Act).
(3) Section 27 of the 2005 Act (powers of authorised employees in relation to obtaining information) applies in relation to an employee of a 2004 Act authority who is authorised for the purposes of sections 45 and 46 of the 2004 Act (which make provision in relation to the powers of authorised employees in relation to obtaining information and investigating fires) as if the employee of the 2004 Act authority were an authorised employee (within the meaning of section 27(1) of the 2005 Act).
(4) Section 29 of the 2005 Act (powers of authorised employees in relation to investigating fires) applies in relation to an employee of a 2004 Act authority who is authorised for the purposes of sections 45 and 46 of the 2004 Act as if the employee of the 2004 Act authority were an authorised employee (within the meaning of section 29(1) of the 2005 Act).