He’s been remanded on bail, Eddie, not in custody. Just for information the decision to remand in custody or on bail does not depend on the seriousness of the charge (until you get to the very serious stuff such as murder and manslaughter where the nature and seriousness of the offence itself, and the likelihood of a lengthy custodial sentence makes a remand in custody inevitable, usually on the basis that the accused may abscond). The Bail Act 1976 provides a right to bail unless it can be shown there are grounds to suspect that the accused will either (a) abscond, (b) commit further offences or (c) interfere with the course of justice (particularly, interfere with witnesses). In this case bail conditions have been set to address any fears the court had.
Nonetheless the advice is the same. The incident you describe, greekygirl, is one of “domestic violence”. The CPS have a policy of continuing to prosecute DV matters with or without the victim’s co-operation wherever possible. Because you said you would not be willing to attend court when you made your statement does no exclude the possibility that you may be asked to do so. At the moment that is all that has been done – you have been asked to attend. However, you will be expected to. If you do not the prosecution may ask for a witness summons to be issued against you. This will be served on you telling you when and where to attend. If you fail to answer that summons as directed you can be arrested and held in custody to be brought before a court.
Your son has obviously pleaded not guilty to whatever it is he’s been charged with. The prosecution need your evidence to support their case and your son has objected to it being read to the court. He wants you in court to be cross-examined. (More likely, though, is that he has been advised to ask for your presence in the hope that you do not attend). Contrary to what has been said you don’t need any legal advice or CAB intervention. (You have no right to legal representation in court so legal advice is somewhat pointless). There’s nothing anybody can tell you other than all you need to do is turn up on the appointed day and give your evidence. The alternative is a likely witness summons with the consequences I mentioned above.