The Supreme Court case involved Wescley Fonseca Pereira, a Brazilian immigrant who overstayed his visa and was put into deportation proceedings in 2006. The initial paperwork he was sent did not state a date and time of appearance, however, and Pereira said he did not receive a subsequent notice telling him where and when to appear. When he failed to show up in court, he was ordered deported.

The Supreme Court ruled that paperwork failing to designate a time and place didn't constitute a legal notice to appear in court.

The ruling sparked a frenzy of immigration court filings. Over ten weeks this summer, a record 9,000 deportation cases, including Barrios', were terminated as immigration attorneys raced to court with challenges to the paperwork their clients had received, a Reuters analysis of data from the Executive Office for Immigration Review shows. The number represents a 160 percent increase from the same time period a year earlier and the highest number of terminations per month ever.