A cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man's neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ PoliceA cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man’s neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ Police

A cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man's neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ PoliceA cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man’s neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ Police

Andrew Montgomerie consults with defence lawyer Ron Mansfield, KC, at the start of his wounding trial in the Auckland District Court. Photo / Alyse Wright Andrew Montgomerie consults with defence lawyer Ron Mansfield, KC, at the start of his wounding trial in the Auckland District Court. Photo / Alyse Wright

A cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man's neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ PoliceA cocktail party at a Westmere property turned into a crime scene in April 2021 after Auckland property developer Andrew Montgomerie allegedly smashed a broken wine glass against another man’s neck during a heated exchange. Montgomerie is on trial, accused of wounding the other man. Photo / NZ Police