This might help you, if you confess and pay the fine both the state and yourself saves alot of time and money.
Since you confess there wont be any trial and you accept paying the fine, but wheter its shown in your criminal record or not i dont know anything about.
http://www.domstol.se/Delgivning/Forenklad-delgivning/
Unless of course if you win the trial, but since you got caught red handed that wont happen.