Authorities have captured a four-metre, 600kg troublesome crocodile which Northern Territory’s locals believe killed at least a dozen dogs and lunged at a fisherman.

The problem croc was held in a local police cell before TV Outback Wrangler Matt Wright helped take him back to a Darwin crocodile farm for captive breeding.

For almost a year he was endangering the small community of Wurrumiyanga on the Tiwi Islands.

“He’s been stalking and hunting people. He’s been eating all the dogs. I think he’s eaten a couple a day there at one stage,” Wright said.

The 600kg crocodile had become a problem for the local community. (Matt Wright)

“You’ve got kids and everyone swimming there so it was only a matter of time before that croc, being a problem croc, was going to eat someone.”

Crocodylus Park owner Grahame Webb agreed, emphasising the importance of being pragmatic with the crocs.

“You’ve got to remember our population has gone back to what it was. We’ve got a lot of crocs, they’re all over the place. In the end, it’s the people that are really important,” he said.

“And, you can’t release them back into the wild because they have a homing instinct.”

School children were taken out of class as hundreds of locals turned up to catch a glimpse of the crocodile being transported by boat to Darwin.

He now gets a free feed every day, surrounded by females on 300 acres of swamp land.