Three Greek youths were arrested on Saturday for conspiring to cheat in a university entrance exam using a wireless camera hidden in a pen, police said.
The police were alerted to the ploy by the principal of the Athens high school where the mathematics exam was being held, who noticed an antenna cable running from the school's front gate to a clump of bushes nearby.
Two of the unidentified youths, aged 20 and 24, had hidden a laptop in the bushes overnight, allegedly planning to use it to help their 19-year-old friend cheat.
The 19-year-old intended to use his miniature camera to transmit the exam questions to the computer, and his friends would provide him the answers though his mobile phone earpiece.
Once arrested, the trio confessed to also having cheated in a May 26 biology exam by obtaining the topics from earlier exam-sitters and conveying the answers by mobile phone.