VINCENNES, Ind (WTHI) - It's an operation the Vincennes Police Department are calling 'Operation HalloClean.'
In total, police intend to or have already arrested a total of 85 people.
The arrests all deal with drug dealing and related charges.
74 of those charges are felonies, with charges including dealing meth, dealing cocaine, and dealing prescription drugs.
The other 11 people will be summoned to court for related charges.
According to the Vincennes Police Department, the arrests began at 6:30 Monday morning.
Knox County prosecutor Dirk Carnahan says roughly 60 people were apprehended Monday.
In total, the investigation lasted 19-months.
Carnahan says, "A lot of these people deal drugs and get more people addicted and cause more damage to the community. But they're able to do it because they fly kind of below the usual law enforcement radar. So an operation like this helps us make an impact on that segment."
See the full the list of those facing charges here.