The UK's in a bit of a state of flux with cannabis.
With police resources stretched as they are, they're not always taking the types they're finding with personal quantities of cocaine down the station anymore. If they're satisfied that they've identified you correctly? They'll take the sniff and I guess you'll get a fine or summons in the post? I didn't see what happened next to find out which?
Cannabis edibles are here now, illegally obviously, but it's moving the culture away from the historic perception of being seedy and illicit.
Canada and Israel were in the top 3 stoner states a couple of years ago. I didn't see that coming in 1990.
Don't know what happens next really? At the moment on a still Summer day, everywhere stinks of weed in London. Brixton to Kingston there it is. Legalised, I suppose it's feasible that the smells could drop off? (Though I wouldn't put the mortgage on it ). There will be people that choose edibles, and the dry herb vapes hardly smell at all unless someone's exhaling in your face?