I don't know the 15 minute trick they use, but after a number of months in a development group, the simple method we were given for clairvoyance seems to work for remote viewing as well.
We started by staring at a point in a crystal for about 10 minutes and placing our awareness there, and recording what we received. Then we were ready to do a reading/remote viewing. The first thing is to clear the mind and allow the first impressions that came in about the target to flow and talk before we had time to think and judge what we said.
Any conflicting information would be balanced and the stronger of the two would be used.
The more you do this the easier and stronger it is. And the great thing is, unlike some reading types, the data in remote viewing is easily verifiable and the results can be incredibly accurate. And danger? Excuse me? Using our 5 senses is natural and how we are designed, any extension of these, especially under controlled conditions, is no different. I suspect any stories of dangerous psychic powers come from those who were already on the edge, and the psychic experience just pushed them over. Life is dangerous, don't worry about any more from the supernatural realm or you'll either give up or drive yourself crazy worrying about it.
But if anyone can dig up this 15 minute method we could all spy on everywhere we liked, and I for one would be kept pretty busy