138Powers of arrest etc.: supplementary provisions
(1)The following provisions have effect to supplement section 137 (“the principal section”).
(2)Where a person is detained under subsection (2) of the principal section, subsections (2) to (7) of section 2 (detention and questioning at police station) and subsections (1) and (3) to (5) of section 3 (right to have someone informed when arrested or detained) of the [1980 c. 62.] Criminal Justice (Scotland) Act 1980 and section 28 (prints, samples etc. in criminal investigations) of the [1993 c. 9.] Prisoners and Criminal Proceedings (Scotland) Act 1993 shall apply to detention under that subsection of the principal section as they apply to detention under subsection (1) of the said section 2, but with the modifications mentioned in subsection (6) below.
(3)The reasons referred to in subsections (4)(b) and (6)(b) of the principal section are that—
(a)the name of the suspected person is unknown to, and cannot readily be ascertained by, the constable;
(b)the constable has reasonable grounds for doubting whether a name furnished by the suspected person as his name is his real name;
(c)either—
(i)the suspected person has failed to furnish a satisfactory address for service; or
(ii)the constable has reasonable grounds for doubting whether an address furnished by the suspected person is a satisfactory address for service;
(d)the constable has reasonable grounds for believing that arrest is necessary to prevent the suspected person—
(i)causing physical injury to himself or any other person;
(ii)suffering physical injury;
(iii)causing loss of or damage to property;
(iv)committing an offence against public decency; or
(v)causing an unlawful obstruction of a highway or road; or
(e)the constable has reasonable grounds for believing that arrest is necessary to protect a child or other vulnerable person from the suspected person.
(4)For the purposes of subsection (3) above an address is a satisfactory address for service if it appears to the constable—
(a)that the suspected person will be at it for a sufficiently long period for it to be possible to serve him with process; or
(b)that some other person specified by the suspected person will accept service of process for the suspected person at it.
(5)Nothing in subsection (3)(d) above authorises the arrest of a person under sub-paragraph (iv) of that paragraph except where members of the public going about their normal business cannot reasonably be expected to avoid the person to be arrested.
(6)The following are the modifications of sections 2 and 3 of the [1980 c. 62.] Criminal Justice (Scotland) Act 1980 which are referred to in subsection (2) above—
(a)in section 2—
(i)in subsection (2), the reference to detention being terminated not more than six hours after it begins shall be construed as a reference to its being terminated not more than four hours after the person’s arrival at the police station to which he is taken under subsection (7)(c) of the principal section; and
(ii)in subsections (4) and (7), references to “other premises” shall be disregarded; and
(b)in section 3(1), references to “other premises” shall be disregarded.