Almost 80 people have been arrested for entering Christchurch's central city red zone since cordons were put in place following the February 22 earthquake.
Police have arrested 78 people for night time breaches of the cordon, with the number of arrests highest in May, when 18 people were arrested, Christchurch Central area commander Derek Erasmus said today.
"The number of people breaching the cordon is relatively low, but it is still disappointing that a number of people are putting themselves and others at risk by being inside the red zone at night. It remains a very hazardous environment to be in."
Many of the people arrested were affected by alcohol, Mr Erasmus said.
"Some say they are just taking a shortcut, but clearly a number of them are inside the red zone with serious criminal intent."