In the town of Elne in southern France, it has been discovered that more than a half of exhibited paintings by Étienne Terrus are fake. The mayor describes it as a catastrophe. The basic question is how the forgeries came to the museum in the first place. We will follow the case to find out who is responsible for it. After all, it should not be so complicated. We have something similar in our National Museum. Here, too, we look forward to the assignment of responsibility. One more thing is also interesting - that fakes are also coming togetting into museums and galleries where there are not globally significant painters, but the regional ones. Such cases can also be found in the the Czech Rrepublic. There is one more thing coming out of this case. The purchase committeecommissionss should pay a greatclose attention to all circumstances when buying the item in question.