Question

Children are selling sour candies in the Talmud Torah that are past their expiration date
1.
According to the law this is dangerous because the date has passed. Is it permitted to sell them and ignore the law?
2.
The Talmud Torah turns a blind eye and does not enforce the internal rule that it itself established, that it is forbidden to sell on the Talmud Torah premises. Is it permitted to sell because they turn a blind eye? Or is the basic rule what determines things even though they ignore it? (Regarding the expired date, the Talmud Torah is apparently unaware and turns a blind eye, presumably on the assumption that standard candy is being sold.)
3.
A sister stole some without permission and ate a few of the sour candies 
How does she pay?
A. According to the price at which they are sold in the Talmud Torah?
B. According to the price at which they were bought from the offender who sells the product to the children (a huge gap)?
C. Is she exempt altogether because they are past their date?
4.
The children had travel costs and trouble in going to the offender who sells to them.
Does she need to pay the proportional share of those sour candies she ate in the travel cost?
5.
They sell the expired sour candies on a special: 3 for 1 shekel

• When calculating, should one calculate according to the special or according to the cost of buying a single one?

With the blessing, “and I will remove theft and offenders from our midst”