OK, I'm going to make everyone's head hurt with facts. There is not, as of yet, any non-contact test for peroxide. There might be one on the way, courtesy of a couple of plastics chemists from San Diego.
One of the things we forensic chemists try to do well is qualitative analysis. Give us some "stuff" and we will use the available tools to tell you what the stuff is. TNT (trinitrotoluene) based explosives are a piece of cake - well not actually cake - because of the aromatic rings and nitro groups given off. That is not so with respect to the newer peroxide based explosives, such as triacetone triperoxide. But a new plastic synthesized using a boronic acid (3,6-bis (pinacolatoboron) fluoran is showing some promise in detecting peroxide vapor in the 3 part per billion range. But it's not on the market yet, so Ron is again showing his lack of expertise. At present, there are NO strips that you can wave around to detect peroxide. I'm waiting for a test strip you can wave around in the presence of TSOs to detect rampant bulls%%t.