Green party peer Jenny Jones has asked Theresa May, the home secretary, to investigate Cambridgeshire police following the unnecessary visit of two officers to the home of a blogger who tweeted "fact checks" about UKIP policies.
According to Jones, the incident raised questions surrounding police action when faced with new crimes associated with social media.
"The police themselves have admitted that nothing illegal took place, yet they visited the blogger anyway," she wrote in a letter to May. "For me, this suggests a recklessness in the face of competing police resources, time and energy, not to mention a potential infringement of the blogger's civil liberties."
Jones called for "a short investigation into the procedures of Cambridgeshire police, that allowed two officers to visit someone after a complaint that did not contain a justifiable reason for the visit."
Further, her letter urged the Home Office to circulate written advice to all police forces, defining what is legal on social media, and what is not.
"I believe in this instance police attendance was not required," said chief constable of Cambridgeshire police, Simon Parr, who has called for an internal review into the incident.
Blogger and Green Party member Michael Abberton said he was asked to delete some of his tweets, including a retweet of a faked UKIP poster called "10 great reasons to vote Ukip" which criticised the right wing party's policies.
UKIP had complained on the grounds of Abberton's misrepresentation and impersonation of the party.
Abberton wrote: "A complaint had been made but with no legal basis. Not a police matter. So why did they come to my home in the middle of a Saturday afternoon?
"Is it not a matter for concern that a political party would seek to silence dissent and debate in such a manner?"
This gaffe follows last month's report that only 2 per cent of police staff across England and Wales have been trained in investigating cybercrime.