South Thanet MP Craig Mackinlay says the right of anonymity should be extended to rape defendants until charge or conviction.
His comments follow the not guilty verdict issued in the court case of former chief of staff Samuel Armstrong who has today been found not guilty of two counts of rape and two of sexual assault.
Mr Armstrong, 24, was tried at Southwark Crown Court following the accusations made by a parliamentary worker.
The woman claimed she had been raped at the Houses of Parliament by Mr Armstrong in October last year.
Mr Armstrong maintained the pair had had consensual sex after a night of drinking.
The jury delivered the not guilty verdict after just over five hours of deliberations.
Mr Mackinlay said: “I’m obviously delighted that Sam has been cleared. I had no doubt as to his innocence throughout.
“This has been an horrendous time for both Sam and his family and questions do need to be asked about the time it took to progress this case.
“And in a week where we’ve seen various rape trials collapse because the authorities had failed to disclose crucial evidence, I do think we should also re-consider extending the right of anonymity to rape defendants until charge or conviction.”
Following the verdict Mr Armstrong said the ordeal had been the worst year of his life.
