Elfyn Llwyd MP, who led a parliamentary inquiry on stalking, accused prosecutors of "undercharging" and called for a change in culture in the CPS and police, claiming stalking is too often treated as a domestic issue.
The Plaid Cymru Westminster leader said charging lesser offences often ends with a "slap on the wrist" and do provide justice for victims.
"We need to so make sure prosecutors take this very serious offence as they should because it is a considerable area of concern." Llywd said.
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The annual event has earned a place in the record books ahead of the grand final of the 60th anniversary show in Austria this evening.
Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Some students argued that the centuries-old tradition of wearing gowns, suits and mortarboards to exams was 'archaic' and looked elitist.