Police said two men allegedly assaulted three people sleeping in a shelter in Katherine on October 10 last year.
A 32-year-old man was arrested in Acacia on Tuesday and police searched his home in Girraween.
“A number of illegal items were seized including an unsecured firearm, sword fish rostrum and a live crocodile,” police said.
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The man has been charged with three counts of aggravated assault, possess/use firearm unlicensed, possess/use firearm without permit and ail to meet storage requirements.
He was bailed to appear in Darwin Local Court on June 13.
