To think schools searching sandwiches is a bit much

[Comewhatmay25]

Just found out my DDs school search their lunchboxes everyday. But not just lunch boxes but open sandwiches to see the filling and open flasks to see what's inside. This feels very intrusive and I wonder if it could have the opposite effect of cross contamination. It's not done by staff in the kitchen just dinner ladies with no gloves on or nearby handfasting facilities. AIBU to think this is disgusting and intrusive or is there a need for it?
Does anyone else's school do this?

@Sapphire29 Whole nuts are also a choking hazard and are sometimes banned for that reason so be aware that a ban on whole nuts might not be a ban on nut products (and a ban is rubbish anyway as people won't/can't check properly).

People aren't downplaying the seriousness of the incident or that changes needed to be made going forward - they're questioning that the cause for cross contamination can 100% be identified. At best the school could find the most likely cause.

And they are questioning this because if you say something was due to cause x and it wasn't then any changes made might not reduce the risk. Given the number of foods egg is baked and mixed into it seems unlikely that there was only one potential route for contamination.

I think Allergy UK don't recommend nut bans because it misleads people into thinking they are more serious than other allergens and into thinking bans rather than safe processes are the best way to deal with allergies