How to test that you have lost money and suspect that it was taken by a good friend?

In the absence of evidence, it is best not to be suspicious, so as not to hurt friends (feelings) by mistake;

Take a fall and gain wisdom; Pay more attention to yourself at ordinary times and be careful to avoid similar things from happening again;

Pretend not to notice the loss of money and keep quiet! (This is very important) Then deliberately put a 100 in the place where the money was lost last time, and then lure the snake out of the hole!

If you lose a lot of money, call the police immediately, and then you will know the result (who took your money)

Be sure to remember, don't pat your head and look for the truth by intuition, because there is a great chance of accidental injury. ...

The above is probably all possible situations. I hope it works for you. Goodbye. ...