Current procedure is to conduct a pat down if they alarm the WTMD, if you move to the HHMD, it would (based on previous policy) be a more targeted patdown - essentially wherever the HHMD alarms. Most of the time I lump regulations and policy under one heading, while there is a technical difference between the two, they are both a part of the rules that make up the process. I will try and be more specific in the future. I still just don't get why photography is such a problem - the rules/regulations/SOP are all stating the same thing, and it is readily available through the internet at any time, and in hardcopy at each airport. The only thing I can come up with at this point is failure to comply - which should be dealt with immediately.