Before a registrable offender's fingerprints are taken under section 75, the police officer must tell the offender, in language likely to be understood by the offender—
(a) why the fingerprints are to be taken and why the police officer is not satisfied about the offender's identity; and
(b) that it is an offence for the offender to fail to take all reasonable steps to allow the offender's fingerprints to be taken; and
(c) that the fingerprints will be kept by the chief police officer.