A similarity between the Supreme Court decisions in New Jersey v. T. L. O. and Vernonia v. Acton is that

New Jersey vs. TLO and Vernonia vs. Acton were both Supreme Court cases that dealt with high school students and drug use.

New Jersey vs. TLO was an event in which a student's bag was inspected based on the suspicion that they were dealing drugs in school. The bag was investigated and drugs were found. TLO argued that this was an illegal search, because the principal did not have a search warrant.

The Vernonia vs. Acton cause dealt with a school's ability to drug test their student athletes. This was found reasonable by the Supreme Court and did not violate the 4th amendment.