“I received this device earlier today, from the FBI,” he said. “As you can see, it has AgriMed Global markings on the inside. All I can say is that this was found in a cancer patient’s home. Do you have any idea if this is a legit AgriMed device, and if so, what is it?”

Winslow studied the photos, then nodded. “Metal box, looks like a water hose running through a sealed compartment, attached to it is an opaque plastic bag, and out the other end is another hose that attaches to the spigot on the front of the box. Is that a correct description?”

“Yes.” Juan nodded. “I couldn’t exactly tell without taking it apart what was in the bag and what purpose that inner chamber was for. Is this something you’ve seen before, Dr. Winslow?”

“Yes, it looks familiar,” Winslow said matter-of-factly, putting the pictures back down. “But, the AgriMed Global stencil on the plastic bag was the only identifying mark? No serial numbers? No identifying tags on the hose or the interior chamber itself?”

“No, nothing like that. Just the stencil.”

Pressing his lips together tightly, Winslow stared at the collection of photos and hummed. “I’ve seen something like this before, but we used it to dose certain medicines through it. Almost like how an infusion pump doses very exact amounts of medication through an IV. This device does the same thing, but it’s driven by a little paddle wheel within the mixing chamber.” He pointed to one of the photos. “As the water flows through, small amounts of whatever’s in that bag gets dripped into the stream of water.”

Juan’s interest was piqued. “So it wouldn’t be unreasonable to think that if there was some oral medication in that bag, someone would just turn the spigot and the water coming out would automatically be dosed appropriately?”

“Yes, but I’ve only seen this used on lab animals,” Winslow said as he drummed his fingers on the table with a troubled expression. “We never did it on people, because I suppose we never needed to. Generally speaking, people take pills or shots pretty readily.”

A nefarious possibility immediately sprang to Juan’s mind. “What if you didn’t want someone to know you were dosing them, or maybe you didn’t want them to have any idea what they were taking? Something like this could be used.”

Winslow frowned. “I suppose if the medicine is tasteless… Is that what the FBI think it was used for?”

“No, nothing like that. At least, not that I know of.” Juan had to admit that Agent Carrington wasn’t always entirely forthcoming about everything he knew.

“Did the FBI agents dust the interior for prints?” Hutchison asked, the gray-haired man staring at him with that penetrating glare of his.