A screenshot of the tweet was posted to Facebook (below) and shared over 450 times.
In the reported tweet, Wells wrote "I'm not remotely happy about the innocent victims of this incident, but I don't care about the stabbed pig and I hope for an end to policing".
One student at the university said on Facebook that they were "ashamed to study at the University of Edinburgh today".
This isn't the first time Wells has been criticised for her attacks on police. Last year, she wrote on Twitter "I hope more police die today #acab". She was forced to resign from her position as EUSA’s LGBT+ Liberation Group Convenor following these comments and reports of death threats towards her.
Four people died in the terrorist attack at Westminster yesterday. The police officer referred to in Wells' tweet was Keith Palmer. Aged 48, he was married and a father.
Wells contacted us and suggested that the tweet was "falsified". However, Student Voices has been assured by several separate sources that it was tweeted from her account. Wells did not respond to an email asking her to clarify whether she did or did not tweet it.
The tweet was also shared by Tom Harwood, one of three candidates running to be the next NUS president.
The anti-police movement in this country is deeply concerning.— Tom Harwood (@tomhfh) March 23, 2017
This from a former NUS delegate. pic.twitter.com/WZMnjDOZbK
Outrage at Ex-NUS Delegate Who Described Murdered PC Keith Palmer as "Stabbed Pig" Reviewed by Student Voices on 10:56 Rating: