Why are humans the most successful species on the planet? Inventiveness and adept use of tools are major factors, so it is no surprise that more teenagers are using mobiles to cheat in exams. Thai students have cheated using vibrating pagers, while arms and cuffs were a favourite in the days of ink. Short of insisting that exams are sat in police-issue paper jumpsuits, some determined cheats will get away with it.
The trend for teachers to "help" pupils is more worrying. Doubts over coursework devalue the education system, and more blatant fiddles - heads altering results - are not unknown. Ministers will need to examine the pressures, overt and covert, being applied in the name of raising standards.