"We holding back... that it's DEK?" Ron asked.
Harry grimaced. "Don't release it as official that he's our subject, just wanted for questioning in connection. If we get more than memory pulls, then I'll bring it to Robards. I don't want the photo released to Proudfoot. He can pull some shenanigans that we don't want to deal with. Next is Twilfitt and Tattings. The Malfoys frequent there. Ron interviewed him already, but redo with the photo."
Terry and Mike both nodded, and scribbled some notes that Harry couldn't read.
"The quidditch shop across the street isn't as big of a target, but that's where DEK grabbed Malfoy. Talk to anyone who might have noticed DEK stalking him last month. That's the big thing. Malfoy only leaves his house, presumably about noon, on the first of every month. Spends maybe thirty minutes at Gringotts and walks Diagon for maybe another half-hour to an hour and leaves. It's not an easier pattern to stumble across. Someone reported his actions. Malfoy said that he occasionally gets quills and books, but Eeylops was the last one he directly said he frequented."
"Doesn't mean that the other shops didn't notice," Mike said.
"Very true, but those are the hit points. Walk the whole mile, just to make sure," Harry said. He felt a little guilty holding back about the massage shop. He could stop by tonight.
"Did he go to Knockturn?" Ron asked.
Harry shook his head. "He didn't indicate that he did. Hold off on that. Any questions about Diagon?"
"I think we got it," Terry said.
"Alright, Ron... you're still heading to Ollivander's, 'kay?" Harry said, as he turned and wrote on the board:
2.    Ollivanders – Ron
"On it. Just waiting for his shop to open."
Harry nodded. "I got the ID. Maple, 10-11 inches, and I'm leaning toward dragon heartstring core."
Ron nodded. "Maple isn't hugely popular, but it'll take a while. You want me to hover, or leave?
"Your discretion. We do have a lot to do. Actually, could you drop by our research team?" Harry asked and didn't wait for Ron to answer when he wrote:
3.    Lung-fill Curse and Trace-Blocking - Research 
"Trace-blocking isn't that hard," Ron said, as he wrote them down.
"I know, but it's new information and that Lung-Filling Curse is fairly unique. We don't have much on DEK in the way of spell-work besides Apparation and Crucio."
"As far as how young DEK is, Apparation might lead... somewhere," Terry pointed out.
Harry hummed. "A splinched or unlicensed jumper? I like it. Add it to the list, Ron. Next is me."
4.    Scotland yard – Harry
"I'm meeting Stebbins from Muggle Relations to set up inter-department cooperation. Mike... is the hard evidence ready to be sent?"
"Righto, boss. Fingerprints, bootprints, tool specs and other muggle items. I duplicated pics of the tools, too. Got a few hairs and fibers, but I don't want to compromise our case by destroying crucial evidence. The blood evidence is iffy. Could easily be the victim's or someone else's."
"Thanks. Muggles work slower, so I want to get started. We also got a possible muggle-restricted drug usage. Still waiting on St. Mungo's for cooperation, but Scotland yard might be able to locate missing muggle drugs," Harry said, and turned back to the board.