Keep tabs on police (8)
I believe the answer is:
regulate
This might be a double definition.
'keep' is the first definition.
(I know that regulate is a type of keep)
'tabs on police' is the second definition.
'regulate' can be an answer for 'police' (I've seen this before). I am not certain of the 'tabs on' bit.
Can you help me to learn more?
(Other definitions for regulate that I've seen before include "Adjust - control" , "Control, supervise" , "Bring order" , "Control, manage" , "ADjust, fix" .)