Who polices Plymouth
Plymouth has its own police department, and it covers the Terryville section as well as the rest of the town. Arrests here are made by Plymouth officers, who handle booking and the initial bond.
If your paperwork says Terryville rather than Plymouth, that is the same department and the same town. It is not a different jurisdiction and it does not change anything about the case.
Where your case goes
Plymouth cases are heard at New Britain Superior Court, GA 15. Plymouth was formerly served by the Bristol court, GA 17, which has closed, so an old reference pointing to Bristol is out of date.
It is one of the longer drives in this court, so read the court page on parking before the day rather than on the morning. Released, your date is on your paperwork; held, court is the next business day.
After the arrest
After booking you are either released on a written promise to appear or on a bond, or held for court the next business day, where a judge looks at the amount again. The arrest page covers the booking end of it and the bond and bail page covers the bond.
For a family violence arrest, court is the next business day regardless and a protective order issues there. Those orders reach into where you sleep and whether you see your children, which is why they are worth an attorney before the date.
Until then, say nothing about what happened, and assume any call from a holding facility is recorded. The arraignment page explains that first court date; the what to expect page explains the whole arc.
Common charges in Plymouth
What GA 15 sees from Plymouth is the ordinary range: DUI, drug possession, assault, domestic violence and family violence, and larceny and shoplifting. A first offense frequently qualifies for a diversionary program ending in dismissal, and applying is something someone has to do rather than something that happens.