Sir Bernard Hogan-Howe says that drug-testing would help cut the number of users - as the risk of losing your job would act as a deterrent.
"It seems to me we have got to plant in people’s minds something to affect the demand as well as supply. You can think of many occupations where if you were working with a colleague you would want to be sure in fact that they were drug free."
More top news
The curtain will come down on the show for the final time at the Piccadilly Theatre in March next year, before embarking on a UK tour.
Choudary was jailed after encouraging backing for the terrorist group IS in a series of talks posted online.
In an interview with ITV News, Antonio became the first England player to speak out about the allegations against Sam Allardyce.