Part III Arrest
31 Arrest for further offence.
Where—
(a)
a person—
(i)
has been arrested for an offence; and
(ii)
is at a police station in consequence of that arrest; and
(b)
it appears to a constable that, if he were released from that arrest, he would be liable to arrest for some other offence,
he shall be arrested for that other offence.