As a matter of fact, josepp said -

In fact, most of the artifacts are in the care of the Mormon Church these days which is fine with me because at least they are in good hands.

On the "Controversy Revived" page of the Michigan Historical Museum website, it says -

A systematic review of the historical background of the relics and a material analysis of the relics themselves were published in BYU Studies in 2001. These studies satisfied church authorities that the Relics were fraudulent creations and thus irrelevant to the collections of the Museum of Church History and Art.