A CPS spokesperson said: "Today (24 July), the CPS has authorised West
Midlands Police to bring charges in relation to a fatal collision
involving a bus in Coventry on 3 October 2015.
"Bus driver Kailash Chander, 79, has been charged with two counts of
causing death by dangerous driving and two counts of causing serious
injury by dangerous driving.
"Mr Chander's employer, Midland Red (South) Limited, has been charged
with two offences under the Health and Safety at Work etc. Act 1974.
I'd guess there was probably some unfitness (is that a word?) to drive which the employers should have been aware of, I wonder if there are more stringent rules on testing (by the company) over-65s or something or documents that needed to be in place.
Police have charged the bus driver and his employers:
http://www.cps.gov.uk/news/latest_news/bus-driver-charged-following-fatal-/
That's unusual.