PCC Philip Wilkinson said: "Former Police Constable Darren Thorn abused his position of trust to form a completely inappropriate sexual relationship with a victim he met when attending her home in the course of his duties.
“The sentence Thorn received today shows just how appalled and fed up society is with those in privileged positions, abusing those privileges for their own selfish gain.
"It would be a huge injustice to the vast majority of officers and staff at Wiltshire Police who carry out their roles with integrity to suggest that his behaviour was representative of the wider Force, but it would be wholly misguided to suggest that this former officer is a lone 'bad apple'.
"Cases like this chip away at public confidence and I continue to work with the Chief Constable to eradicate any trace of corruption and misconduct within Wiltshire Police to ensure that we do not end up in a place where that public trust cannot be rebuilt.
"There is no place in policing for those who abuse their position for personal gain.”