Baby changing facilities

O for heavens sake.

They could get a face full of poo.
I doubt small children would be snorting Cocaine.

You should take a clean wipe before you put the baby on the changing pad
Your child would probably be more at risk from other childrens germs than cocaine.

That's horrible - I had never heard of that! Both DDs have their own folding mats which they use on the fold down after wiping it with a baby wipe. However I got a shiver down my back when I read your post!

Carry a pack of Dettol wipes wherever you go.
There are some filthy beasts around !!

I would be more worried about contamination from previous infant users of the mats than the remote possibility that a few grains of cocaine might be in the crevices of the mat.

Invisible slight faecal contamination from a baby with some infection would be far more likely to make a child ill than the ingestion of one tiny grain of cocaine. As others have said, always wipe the surface down with a disinfected wipe.

I suppose a few, and even the OP said a few, cocaine users may do this, but I would say that the chance of this happening is very remote.