Letters to former Prime Minister (12817/19)

How many times did the chief constable write directly to the former Prime Minister Rt Hon Theresa May MP during her time in office for the following reasons:

1. Raising concerns that budget cuts were having a detrimental  effect on policing
2. Requested more money, how much was requested and how much if any
3. Raised concerns that budget cuts were putting officers at risk what was her response