Kind person hid policeman's digital record (4,4)
I believe the answer is:
soft copy
'hid policeman's digital record' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'kind person' is the wordplay.
'kind' becomes 'soft' (associated in meaning).
'person' becomes 'copy' (I can't justify this - if you can you should give a lot more credence to this answer).
'soft'+'copy'='SOFT COPY'
Can you help me to learn more?
(Other definitions for soft copy that I've seen before include "Unprinted version" , "computer file" , "Info in computer rather than printed" , "PC version?" .)