I'm reading Peter Ackroyd's popular history Tudors and I came across this passage:

While the monasteries were suppressed, their shrines and relics were destroyed. The 'rood of grace' at Boxley Abbey, in Kent, was one such holy image, which was also known, to the men of the new faith, as the Dagon of Ashdod or the Babylonish Bel. It was a wooden crucifix upon which the eyes and the head of Jesus sometimes moved; on some occasions the whole body on the cross trembled to express the reception of prayers. Many offerings were of course made to such a miraculous figure. A man named Partridge suspected a fraud and, laying hands on the rood, exposed a number of springs that had made the motions. It was brought to London, and pieces of it were tossed to the crowd outside St. Paul's Cathedral. (Ackroyd, 2012, 125)

While in the bibliography of the Henry VIII section Ackroyd lists Popular Piety in Late Medieval England by A.D. Brown (Oxford, 1995), he doesn't give a proper citation for this particular account and I'd like to learn more. Can anyone tell me more about this particular instance and whether it represents a phenomenon of fakery in more detail? Can anyone recommend a book or the terms used in the professional literature for this sort of thing so I can do my own research?

Edited to add:

I know that at some time or another religious tourism, got to be a pretty big business and that enterprising shrine directors were always claiming to have a piece of the one true cross or the foreskin of Jesus. What got my attention was that this was like expecting to find the world's biggest collection of saints' bones and instead running across a fully animatronic Jesus. So my question is about cheating and about the sophistication of cheating.