I don't know, but the name of your school doesn't sound too American and I've never heard of reproaches as punishments before so I'm guessing you're not in the US. The punishment system at all of the public schools I've attended or know of in the US (or at least here in Chicago) is simply dumb.
Most minor violations earn you a detention, which means you stay after school for 25 minutes doing whatever you please except sleeping or talking. Most kids play video games, listen to music, or do homework.
Intermediary is the SAC, or Saturday Assigned Classroom, this is also known as a Saturday Detention, it's halfway between a detention and a suspension. This is what you get if you miss a detention, and it is two hours on a Saturday of doing whatever you please, sleeping and talking quietly included as long as you're in the room for two hours (bathroom breaks are every half hour).
Larger violations earn suspensions, which means you are required to miss a day of school or more, the more days for the worse offenses.
If you're in Special Ed. type BD, Behavior Disorder, and you cannot be trusted at home, the school will assign you an in-school suspension, meaning you spend the entire school day in one room doing whatever you please except talking, sleeping, or eating. Like the life-sentence in prison, the in-school suspension is the ultimate nonpunishment, it consists of absolutely nothing and offers no gain that anyone can see. Many BD students I know intentionaly earn themselves in-school suspensions so that they can spend the day playing video games, surfing the web, or just skipping all their classes.
Last but not least is expulsion, removal from the school. Expulsion is possible through two means. If you are a minor and miss 16 or more consecutive days of school unexcused, the school expells you until the next year. If you commit a crime of some high degree you are expelled without option of return unless your parents call up the school board and throw a fit.
Here is a classic example of how students manipulate the system:
1. All students are required to where small, plastic ID tags. Some students elect not to.
2. The students who do not where the tags are given a detention as punishment.
3. The students fail to come to the detention and are given either three more or a Saturday Detention.
4. The students fail to come to the more severe Detentions.
5. The student is suspended for one day as punishment for missing detentions.
6. The student complains to his or her parents that he or she has been given a friggin' suspension for the mesely crime of not wearing an ID.
7. The parent, assuming he or she wants the kid to go to school, calls the school and tells them to get a life.
OR 7. The kid gets a day of school to do drugs, get laid, go to the park, or sleep in late just because he didn't wear an ID tag.
Students regularly boycott these punishments. More than once students have jointy refused to wear IDs, and there's nothing the school can do. Also students have been known to organize anti-Saturday-detention groups and thirty or so kids at once will end up being given suspensions, whereupon they simply come to school anyway and the school can't do anything but swallow it - if they call the parents the usual response is that if the kids are that determined to go to school, they shouldn't be stopped.
In my career in the public school system around here I've been given probably more than 100 detentions (at least 25 this year, so probably more than that). I have served only 5 or 6 of these (only 1 this year). I have been suspended on 3 occasions, only 1 of which I actually found myself at home, and I've been given 4 Saturday Detentions, only 1 of which I served. I was nearly expelled from Junior High but my parents threatened the school board and my move to a different school was thereafter recorded as a 'transfer'. I literally don't know anyone who hasn't gotten detentions unless they're a goody-two-shoes, and I don't mean that demeaningly. I mean if you actually stand up for anything, you have to get detentions. They give them out for standing up before the bell rings, not wearing IDs, coming in late, and so forth and so on. The system ultimately fails though because there's nothing done to the student him or her self... you skip detentions and end up with time off school. You tell your parents you've been suspended for something mesely and they call in and say that's absurd. It's a pathetic system, I really love beating it up. (That was sarcasm).
Suffice to say, nine out of ten kids I know have no respect for the school system, and the other one out of ten never thinks about it anyway. Teachers and staff members who preside over detentions are generally scoffed at regularly. Many teachers have adopted this approach and will let students do what they please as long as it actually is harmless, and will skip detentions and go straight to SACs or just bite through the rules and do something actually punishing like take their grade down a letter. It's at the point in my high school where when a teacher who is known to be a detention-giver gives an order it is quite noteably optional to obey it. In my homeroom students come in late from the hall where they've been socializing and the teacher gives everyone a detention. None of them ever go and the teacher screams his mind out at them the next day and they just sit there and smile and then laugh to each other at how red his face got. It's a cruel thing they do, but really it's just stupid. If the kids wanna' stand in the hall and talk for a while during homeroom - a 20-minute period during which nothing productive is achieved - then who really give a damn? A lot of the time other teachers are out there talking to them, and often the student-liked teachers will stand around talking to a student making him or her late so that a student-disliked teacher has to give the student a detention. The student them just smiles, points at the other teacher, and walks right through the punishment without further ado. Because law requires that the school keep permanent record of grades and allows even minors to go back and challenge a grade, teachers must use the grade-reduction punishment sparingly.
This is all the result of democracy. I don't mind at all. The reasonable teachers get it and let the kids do what they want - they realize that if you're not in class, if you sleep through class, etc., you won't learn. And without fail it's those students who hurt their own grades. Punishment self-inflicted. Students who don't wear IDs are just not worth punishing to many teachers. What's the point? I've shared many a conversation with teachers on that subject. My Government teacher, who shall remain safely anonymous, doesn't punish. That's his rule. If you misbehave in class he'll tell you to shut the f*ck up, but he won't give you a detention. You can't have a group of dictators in a democracy, and that's why it doesn't work.