This allows the harassers to avoid punishment. US-based Internet Service Providers (ISPs) require a court order for information about stalkers to be served in the country of their headquarters. Since this can be costly and time-consuming, the Crown Prosecution Service in the UK has noted that such requests can mean delays of up to three months, compared to a real-world stalker who can be arrested within hours. In addition, ISPs often delete e-mail data after 30 days, even insisting on notifying their customers (the perpetrators) that the police are investigating, giving them time to delete crucial evidence. These technical dodges provide software that allows them to send untraceable e-mails from concealed addresses, which investigators are unable to