To prevent students from cheating during school exams, Taiwan on Monday banned the use of invisible-ink pens.
”We will bar students from using invisible-ink pens during exams because many students are cheating with these pens,” Lee Yu-Chuan, from the Education Ministry’s Higher Education Department, told a news conference.
Since an invisible-ink pen uses fluorescent ink, a student can write invisible notes on a piece of paper and take the paper to the exam. During the exam, he or she can then read the notes by shining the ultraviolet flash — which is at the other end of the pen — onto the paper. The notes become visible when they are exposed to ultraviolet light.
Education authorities in many countries, including China, have banned students from using invisible-ink pens during exams to prevent cheating.
An invisible-ink pen is sold for 200 Taiwan dollars ($6). – Sapa-DPA