Not enough information is disclosed inthe question.
If it was a bench warrant that was issued for you, it will remain in effect until withdrawn by the issuing judge.
If you were a material witness in a criminal tlrial and your "no show" caused a mistrial it is possible that you could be charged criminally.
If it was for a civil trial, you may be facing a fine or a civil contempt charge.
Not enough is known in order to give a more exact or specific answer.
Yes, it would be Contempt of Court and a warrant could be issued.
Too many variables to answer the question. How serious was the assault? What was he charged with? Were there witnesses to it? What (if any) is his criminal record? (it would have a bearing on the severity of the prosecution) If you were served with a subpoena to testify as a witness, I suggest that you appear as directed. If not, the judge COULD issue a warrant for your arrest and compel you to appear.
It means that a court threw out the violation warrant as being invalid or against your rights. Many times, courts make a mistake by not processing paperwork fast enough and then realize all the requirements were met after issuing an arrest warrant. This means the judge would have to void the violation warrant.
Assuming you are talking about a subpoena, if you would like to subpoena a witness, the onus is on you to find them. If you can't find them through traditional search methods, you may need to hire a private investigator to locate and serve them.
I have received a subpoena stating that I must attend court next Friday 13th.
I assume you mean a Violation of Parole. Parole is an early release from prison based on terms and conditions that must be abided by. Failure to meet these conditions, such as breaking the law again, would result in a violation of parole. In this case, a retake warrant would be issued for your arrest and return to prison.
Being a witness at a trial is not like being a student in school. A doctor's note will not automatically excuse you. At the very least contact the attorney that subpoena' d you and notify them. You'd better be plenty sick or injured. If you're subpoena'd as a witness in a trial I would NOT fail to show up to answer the subpoena and later hope that the judge will forgive you.
If you were sent a court summons or subpoena to show up and testify and you didnt go they could issue a bench warrant for failing to appear in court and you could be arrested and or fined ,However If you just told the person that you would come and testify for them and you did not receive a summons or subpoena from the court, then you are not bound by law to appear and nothing will happen whether they plead guilty or not.
The police would have to have evidince (police witness) and the will to do so, it would probable be vacated
Yes, they can. Typically a defense attorney will subpoena the witness, but the attorney may request that the court order the witness to remain in the court after testifying for the state. This assumes there is evidence the witness has to offer that cannot be brought out on cross examination of them for some reason. The better practice is to issue a subpoena.
It depends on how his sentence of probation is structured. Child Support is a civil offense, not a criminal offense, but if he flees to avoid the bench warrant THAT definitely would be a violation.
A subpoena is a court order to appear. If the subpoena is ignored, the court may issue a bench warrant. This would result in a sheriff's deputy arresting you and bringing you before the court to explain why you disobeyed the order. The ultimate result could be a fine or jail.