In greyhound racing every dog was sampled pre-meeting, it became too costly so now a GBG Steward comes in unannounced and takes random samples, some pre race and some post race. The track stewards can also request a sample if they consider it nessesary after a race.
Don't remember anyone crying out for a national stadium They only named Belle Vue The National Stadium to get planning permision and grants, otherwise the BSPL would be running it.