Dr. Robert Beck was a physicist, who has to his name a D.Sc in science from the University of Southern California. Prior to USC Dr. Beck was a Professor at the University of California. Dr. Beck is known as a renowned researcher and inventor in the field of Energy Medicine devices.

Excerpts from http://www.cancertutor.com/Cancer02/BobBeck.html:

The reason the Bob Beck Protocol is so absolutely superior to other electromedicine treatments is that it is the direct result of an incredible discovery in medicine.

Two medical doctors, Dr. Kaali and Dr. Lyman, discovered, in 1990, that a small electric current could disable microbes from being able to multiply, thus rendering them harmless. It was, in fact, the greatest medical discovery in the history of medicine because virtually all diseases are caused by, or enhanced by, a microbe. Their discovery was a cure for almost every disease known to mankind.

Dr. Beck, who held a PhD in physics and had 30 years of electromedicine research behind him, found out about the discovery and found a non-invasive way to use their discovery. His early research had to be done outside of the United States to avoid persecution.

His first electromedicine machine is called the Blood Purifier or Blood Electrifier. The Blood Electrifier creates a very small alternating electric current (by "alternating" is meant that the polarity changes 4 times a second). The electric current destroys a key enzyme on the surface of a microbe (this is what Kaali and Lyman discovered), and prevents the microbe from multiplying. The body safely excretes the disabled (i.e. attenuated) microbes because they are not able to "hang on" to any cells.

The Bob Beck Protocol started out as an electromedicine treatment for AIDS / HIV, however, it has turned out to be a superb cancer treatment. ...There is certainly no other electromedicine treatment for cancer that is anywhere near as effective as the Bob Beck Protocol. It is far better than any Rife Machine, far better than any Multi-Wave Oscillator (MWO), far better than anything Hulda Clark has out, and so on.

In total, the Bob Beck Protocol consists of four parts. Two of the four parts of the Bob Beck Protocol (the two electromedicine parts) disable microbes from reproducing (at which point the body safely excretes them); one of the four parts (colloidal silver) kills microbes and the other part (ozonated water) either kills the microbes or the cancer cells (but this is the weakest of the four parts, so its contribution is unknown, officially it is used to detoxify).

Bob Beck died in 2002, but it is safe to predict that there will be a race between orthodox medicine and alternative medicine, for years to come, as to whether this alternative cancer treatment will survive. The technology will survive, but at least one person has been thrown in jail for selling Bob Beck Protocol equipment. That is why vendors are somewhat "gun shy" about making claims about what the Bob Beck Protocol can do.