Morning!!  

Yesterday afternoon an employee slipped in our staff car park on a patch of ice and is at work today but is stating she now has a  bad back. We had the car park gritted twice yesterday by an outside contractor, with the second layer of grit being spread around mid afternoon so it was gritted as much as possible before employees left off work around 4/5pm.

Obviously we dont want anyone to be harmed, hence why it was gritted twice during the day instead of once, but my main query is A) would you consider this a workplace accident as it happened when the employee was walking to their car at the end of the day and B) Would you record this incident as an internal accident?

Thanks in advance.

A Kurdziel's answers are the same as mine. You have gritted so you have clearly thought about the issue but it hasnt worked perhaps the accident investigation will allow you to find better control measures. I dont know what your car park is like but for ours instead of trying to grit the whole area lightly we gritted clear walkpaths quite heavily. 

There is nothing wrong with reviewing what has been done to see if improvements can be made. That said, if you have done what is 'reasonably practicable' to mitigate the risks of precipitation then it's a case of job done.