https://www.bbc.co.uk/news/articles/cn02xwzvd90o
In 2016, Mr Pattison contacted police to say he had been assaulted by his wife. No action was taken due to a lack of evidence.
Surrey Police said that at the time it did not identify any abuse by Mr Pattison, but has now said the allegation he made against his wife was part of his controlling behaviour.
'Allegation was clearly abuse'
Ch Supt Clive Davies said: “The allegation of assault made by Mr Pattison against Mrs Pattison in 2016 was investigated thoroughly at the time and coercive controlling behaviour was not identified.
“Although Mrs Pattison never made any allegations of domestic abuse or coercive controlling behaviour against her husband, our understanding and response to coercive controlling behaviour is significantly more advanced now, and our officers and staff are trained to recognise the signs, the homicide timeline and high-risk factors.
“Looked at through the lens of what ultimately happened, the incident in 2016 was clearly part of Mr Pattison’s controlling behaviour.”