Crew concerns as new police helicopter service launches

A new National Police Air Service is replacing localised police helicopter operations in England and Wales.

The 25 helicopters at 23 bases are expected to save £15m a year as seven other bases are closed.

The Association of Chief Police Officers hopes for 20 minute response times for 98% of the population.

But some police crew members fear the service will be stretched and slower responses could endanger lives.

The BBC's Graham Satchell went to a Surrey airbase and put those concerns to the Minister of State for Police and Criminal Justice, Damian Green.