What are the different stages in UK justice systems from arrest to custodial sentence?

In the UK justice system, the stages from arrest to custodial sentence generally include: arrest and questioning by the police, charging by the Crown Prosecution Service (CPS), court appearance for trial or plea, trial proceedings, sentencing if found guilty, and potentially serving a custodial sentence if imposed by the court. Additional stages may include appeals, parole hearings, and release processes.