At present there would seem to be a shortage of suitably qualified pilots waiting for jobs at police/AA units, so now must be a good time to be reaching 2000 hours.
It's a very small industry (180 odd pilots in the UK, (some very odd!)) with around 5 companies supplying pilots along with some police forces 'directly employing' so my advice is to contact the relevant employers and see if you can make a deal. These companies are always looking to add to their short lists and a good way to start would be to ask about doing a summer season flying 206 etc for corporate, with a view to moving on to a police/hems contract when the time is right.