If you run a council controlled CCTV system in your licensed taxi/phv then as in Brighton & Hove  you are likely to not be able to have instant access to any important data to immediately show the police at the time of any incident.   This is why you also need to run a good dual lens dash cam  and there are many on the market from low budget to very expensive.  However we recommend the Toguard CE45 and very easy to install.

This can be found on many outlets such as Amazon and ebay by various sellers at different prices. We have found the cheapest seller is on ebay @ £50 but you will need to 'Make an offer' for this price. The seller 'bestpricecam' can be found here.
TOGUARD Dual Dash Cam FHD 1080P+1080P Front and Rear Dashcam for Cars 3" LCD 340° Dashboard Car Camera Dashcams with G-Sensor, WDR, Parking Monitor, Motion Detection.”
This dash cam is advertised to take a 32gb micro sd card. However this has been tested with a 128gb card which gives it  significant data storage. The micro sd card will need to be a minimum of Class 10 and it is recommended to ensure that you purchase a genuine brand such as SanDisk which has been available at Argos @ £18. Click Here.
Dual Lens Dash Cam - Ideal for your taxi/phv
To ensure trust as a licensed driver it is highly recommended that any use of a dual lens dashcam is covered by a 'Data Controller Licence' which is £35 and available from the ICO webiste Here
For all licensed B&H drivers & proprietors & special guests registered as member on trade facebook group