Mishawaka Police was called out to a fight late Wednesday night got a surprise when they arrived.
Inside the mobile home, they found a methamphetamine lab.
They found the lab in the 1500 block of Cobblestone Circle, just off of Fir Road.
Once they discovered the lab they called in the Metro Special Operations Section and the Indiana State Police to make a further investigation.
Police arrested Joseph Heatherly on preliminary charges of dealing and manufacturing methamphetamines and also child endangerment.
No children were in the home when police arrived.