Dominic Raab was called a “coward” by the friends and family of Harry Dunn as they were left outside of a hustings in his constituency.
The 19-year-old died in a crash in Northamptonshire in August that led to the suspect leaving the UK claiming diplomatic immunity.
His family had hoped to put pressure on the foreign secretary who attended the event at a packed church in Surrey.
A member of staff at the church said they were kept out due to fire safety.
The Conservative Party has been approached for comment.
Signs calling for Harry’s family and friends to be allowed to enter were held up against the East Molesey Methodist Church door, which was monitored by staff.
There were chants of “let us in” from more than 50 people who