Just like marriage, there are no small details in business. There are, of course, suspicions. As such, I had suspected for quite some time that the Electromagnetic locks that we've been supplied with were well under the claimed holding force in their invoices. The problem was, I have no measuring instrument to prove that the ‘white paper’ is wrong. This requires a special instrument, called precision magnetometer, to pull the two electromagnetic slabs apart when the electricity is turned on. The exact reading that it takes the moment the two slabs are separated indicates the holding force for the EM lock.