A court has heard how there had been a number of break-ins at a west Auckland road construction site before a security guard died there in November 2011.
CNE Security is denying a charge laid against it by the Department of Labour under the Health and Safety Act following the killing of Charanpreet Dhaliwal.
The 22-year-old died of head injuries after being assaulted on his first night of work.
Labour Department lawyer Karina England told the Waitakere District Court on Monday that CNE Security failed to provide Mr Dhaliwal with appropriate training and induction, or to monitor him.
Ms England said the site had experienced several break-ins before the death and the company did not take practical steps to ensure Mr Dhaliwal's safety that night.
Gary Pollock, a lawyer for CNE Security, told the court his client did take all practical steps to ensure that the workplace was safe and what the department is suggesting could have led to even worse outcomes.
A man has been charged with Charanpreet Dhaliwal's murder and that trial is due to begin in the High Court later this year.
