Shomrim, the Jewish volunteer security group, played an active role in the apprehension of Birnie.
“The victim in this case was minding his own business when he faced vile antisemitic abuse in Stamford Hill”, said a spokesperson for the Stamford Hill Shomrim.
“Shomrim followed the perpetrator until police arrived and arrested him.
“Shomrim supported the victim throughout the lengthy justice procedure, and welcome the guilty verdict. This was disgraceful abuse which should not be tolerated.”
Sentencing is due to take place on October 28.