British opposition leader Jeremy Corbyn leaves his house in London, Aug. 6, 2018. Photo: Reuters / Toby Melville.

The London Metropolitan Police are reportedly investigating 21 instances of antisemitism in the UK Labour Party that may be criminal in nature.

The cases stem from a dossier acquired by the London radio station LBC, which the broadcaster then passed on to a former senior police officer. The Daily Mail reported that 17 of the cases should have been reported to the police and the remainder were potential hate crimes.

One of the instances involved the sharing of a link to an antisemitic blog, where there was a reference to “a Zionist Extremist MP … about to get a good kicking.”

Another case was centered on the labeling of a party member as a “Jew boy.”

On an LBC show, Metropolitan Police Commissioner Cressida Dick said, “Hate crime is something we take very, very seriously. If somebody makes an allegation to us which contains something like that, absolutely we will take it seriously, we will scope it, we will see whether a crime has taken place.”

Labour has been beset with numerous antisemitic scandals since far-left MP Jeremy Corbyn won control of the party in 2015. Corbyn himself has been caught on video making antisemitic remarks.

In the most recent such incident, Corbyn was revealed to have said of “Zionists” that “having lived in this country for a very long time, probably all their lives, they don’t understand English irony either.” The statement was widely seen as referring to Jews and was mocked by several prominent Jewish comedians, most notably Jonathan Lynn, who co-wrote the classic British comedy series “Yes, Minister.”

Former Chief Rabbi Lord Jonathan Sacks denounced Corbyn as “an antisemite” who has “given support to racists, terrorists, and dealers of hate,” comparing him to the late racist politician Enoch Powell.

Labour was set to vote on Tuesday on accepting the official government definition of antisemitism, which it has so far refused to accept in total due to clauses dealing with criticism of Israel.

Labour MP John Mann was quoted by the Daily Mail saying, “That is where we have got to, and it is a lack of leadership at the top of the Labour Party, not just, but including Jeremy Corbyn, and this appalling national executive who have … tried to mess around with a very humdrum, mundane definition of anti-Semitism that left parties across the world have been happy to accept along with everyone else.”

“We are now seeing the first British Jewish people leaving,” he added. “That is the state we are in, that is the responsibility of the Labour Party. It’s not a small problem, it’s a big problem and it needs sorting now.”