All reps should carry a recognised ID card. The issue first arose at Lewisham some years ago after a member of the public gained access to a client simply by claiming to be a rep. All reps should carry a card as it is simply practical to do so.
However it is not mandatory for all police station work.
PACE (February 2017 revision) only says the police under Code C 6.12 that the police officer should be of a rank of Superintendent or above to exclude a rep. They should check the rep against the LAA list. The LAA list is not up to date of course so its a bit daft. The only reason for exclusion at 16.12A is hindering the investigation.
Moreover under 6.13 the Superintendent should take into account whether the identity and status of an accredited or probationary representative have been satisfactorily established.
It is a common misconception that DSCC have a role in the identification of solicitors and reps. Not all reps will have a listing on the DSCC. The correct list is maintained by the LAA.
The General Criminal contract (6.63) does stipulate the need for an ID card. It basically says reps covering duty cases should have ID cards. The contract also (9.46) says that ID cards are required where there are local instructions in place. Presumably the cards are not needed for own client matters or where there are no local instructions.
“6.63 You must ensure that all staff undertaking Police Station Duty Solicitor work carry an identification card as specified by us for production when attending Police Stations.”
“9.46 Where required by local instructions, all staff undertaking Police Station Duty Solicitor work must carry an identification card as specified by us for production when attending Police Stations.”
In summary reps do not always need ID. But that's just me being a pedantic lawyer! We still advise reps to carry ID. Its just sensible when custody decide to be daft.
Two organisations issue cards:
a. The Criminal Law Solicitors’ Association (CLSA) card cost is £25 for CLSA members and £35 for non members. The cards need to be renewed annually. http://www.clsa.co.uk/index.php?q=idcard
b. The London Criminal Courts Solicitors’ Association (LCCSA) are renewed annually. The cost of the card is included in the annual membership subscription or for non-members, an annual fee of £36 is charged. https://www.lccsa.org.uk/id-card/
The forms and forms are here: https://www.policestationreps.com/legalupdates.php#IDCards