Accidents associated with "run away" vehicles

Dear Northern Constabulary,

Failed engagement of the parking brake is anecdotally a reasonably
frequent occurrence (Consumer Action Group, 2010)and the outcome
can range from a near miss or minor property damage to fatality and
devastation.
There is very little information in the public domain in regards to
the extent of this issue and the human factors which may be
involved. I would therefore be extremely grateful for answers to
the following:

1. In the last 3 years how many incidents have involved runaway
vehicles?
2. In how many of the above was hand brake failure cited as a
potential factor?
3. What manufacturer, model and age of vehicle was involved?
4. What were the demographic characteristics of the driver i.e.
age, gender, nationality, number of years driving experience.

Yours faithfully,

Noble Ergonomics

Dear Sheriff, Pamela,
Thank you very much for your response - the information provided is
very helpful. I appreciate the time taken to prepare the report. Is
it possible from the data provided to determine the number of
incidents which resulted in serious injury or fatality?
Thank you.

Yours sincerely,

Noble Ergonomics

Dear Sherriff, Pamela,
Thank you for your support.

Yours sincerely,

Noble Ergonomics

Dear Sherriff, Pamela,

Thank you very much for this information.

Yours sincerely,

Noble Ergonomics