Defeated hardline candidate Ebrahim Raisi has complained of voter fraud in Iran's presidential election and called on the judiciary and the election watchdog to investigate, the semi-official Fars news agency said on Monday.The allegations, likely to stoke up Raisi's conservative supporters, were among his strongest since losing the bitterly contested May 19 vote to incumbent Hassan Rouhani by a margin of 57 percent to 38."Tampering with the numbers of people's participation is inappropriate. Not sending ballots to centers where the government's opponent has a chance of getting votes is very inappropriate," Raisi was quoted as saying."I ask the Guardian Council and the judiciary not to let the people's rights get trampled. If this vote-tampering is not looked into, then the people's trust will be damaged."