"We conduct pre-tour visits and speak to law enforcement to find out where the players should and should not go," he said.
"The should-not-goes they don't go to and the shoulds we then double check and carry out our own risk assessment."
Dickason would not go into details of locations which had been deemed no-go zones.
But he said security personnel would be on their highest alert when teams were in transit between stadiums, hotels or other venues.
"At games, the players are quite secure because there will no doubt be robust searching procedures at venues and the players are out in the middle so they've got a fair bit of space from any potential threats," he said.
"Transit security's always an issue. I'm not saying it's going to be an issue in New Zealand but in some countries, that's when you can't control the environment at all. So that's always a major concern."
ESL were taking directions from the International Cricket Council (ICC) security team, which would probably provide supplementary security staff for individual teams.
The ICC had also provided the company with a security plan, details of which Dickason would not disclose.
"There's a whole raft of issues. You have to look at the global security landscape - it's a changing world. On the top end, you've got the potential terrorist issues and while New Zealand historically may have been able to think, 'well, we're a long way from everyone else, so we're immune to that sort of thing', as we've seen recently, your location doesn't preclude you from those sorts of activities," Dickason said.
As well as such major threats, security staff would be on the look-out for issues such as racial vilification and abusive players.
"It's all about protecting the bubble around the team," he said. "But the New Zealand public are terrific - they're one of the best groups in the world to play in front of and we love being there."
