The Shelby family's petty schemes are insignificant to the entire Northern Territory, and such matters aren't even worth bringing to light.
After all, though the Shelby family is also involved in smuggling and black market operations, just as Tommy speculated, they're merely small fry. After about a week of detention, they were released.
Of course, they were fined a substantial amount, and Tommy and the others lost their jobs at the loading station.
Since they were still inmates of the Punishment Camp, after losing their jobs, Tommy and the others had to report back to the Punishment Camp and wait for new assignments.
And this was precisely what Tommy feared most.
Given that they came to the Northern Territory as criminals, now they've committed crimes again, with added offenses, the Shelby family members could likely be sent off to some construction site as laborers.