Disclaimer: I own neither Danny Phantom nor CSI.

This is a request by rosephantom on the lj group dannyphantom. If anyone has any crossovers they would like to see done, review.

Adopted crossovers:

DP/Labyrinth – Author: Angelic Gargoyle Artemis, Title: Labyrinth and Danny Phantom

DP/Yu-gi-oh – Author: Laryna6, Title: Shadow Spirits

The respective chapters have therefore been taken down from this fic due to ff . net's rules against double posting. If you wish to read them, find them on the profile page of the adoptee.

Please, adopt a plotbunny? Continue this fic?

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"Eew." Danny poked his food. He didn't know what it was, but it looked fattening. Jack was digging in like crazy. Okay, Danny decided, not going to eat that.

"Where's mom?" Jazz asked, poking at her food with the expression of an enthralled explorer in uncharted regions.

"She's talking with those investigators who came here from Las Vegas to help us catch the ghost kid. She's working with… I think his name was Nick Strokes. They found some of the ghost kid's hairs at the scene of a ghost attack, but there's something strange about it.

"Strange? What's strange about it?" Danny laughed nervously.

"What's strange is, the security camera confirms those are his hairs, but they're black, not white. Isn't that strange?" Jack looked thoughtful (strange, for him), then looked closely at Danny. "Are you okay son? You look like you've seen a ghost!" He drew the Fenton Bazooka, sprang up out of his chair and aimed it wildly around the room. "Where! Where!"

Jazz laughed. "There's no ghost here Dad, the ghost shield's up, remember? Danny's just been feeling sick lately."

"You've been feeling sick, Danny?"

"Yeah, sure. I think I should go up to my room and lie down." Danny headed quickly for the stairs.

"I'll go with him! Just to make sure he's okay." Jazz made her escape quickly, following Danny up to his room.

"You kids don't want your dinners? Ah, well." Jack sighed. "More for me! Mmm."

Jazz entered Danny's room and closed the door. "You left hairs behind? What were you thinking?"

"What's so bad about hairs?" Danny shrugged. "And they were probably torn off when I got slammed into a wall or something. It's not like I go everywhere with a vacuum cleaner, Jazz."

"What's so bad about hairs? Don't you know anything about forensics?" Jazz threw up her hands in disgust.

"Forensics?"

"It's studying evidences at crime scenes to catch criminals. It's a science, Danny, there are people who spend their whole lives doing it! If they brought in a team from out of state, that means they must be really good, too." This was bad… "Haven't you heard about DNA evidence clearing people's names in trials? There's DNA in hair?"

"So, you mean they can use my hair to find out who Danny Phantom is?" Danny gulped. "I know. I'll go ghost and steal their samples!"

"It's probably already too late." Jazz shook her head. "If they e-mailed the information anywhere… you could never find all the copies."

Danny gulped. "What am I going to do? If people find out who I am—" They heard the sound of the Fenton Bazooka being fired.

Jack's voice came from downstairs. "And take that, ectoplasmic machine! No one steals Jack Fenton's socks and gets away with it!"

"We're going to need a new dryer again." Jazz sighed. "And I'm almost out of clean shirts."

"You think you've got problems." Danny sighed and sat down on the bed, laying his head in his hands. "There's got to be some way to stop them from finding out. There has to be."

"They don't know yet." Jazz sat down next to him and patted his back. "And they might never know."

Danny looked up at her. "What do you mean?"

"DNA is like fingerprints, Danny. To match it up with a person, they have to have a sample of that person's DNA to compare it to. And there's no way they'd have a sample of your DNA on file to compare it to." Jazz shook her head.

"So all I have to do is not go anywhere near a crime scene so on one takes a sample?"

Jazz nodded. "Because if they run a check for matches, well, if 'Danny Phantom's' DNA gets entered into some sort of general database, there might be a positive match."

"There's a database like that?"

"I'm not sure. My specialty is psychology, not forensics. But it makes sense. Maybe you should ask Tucker."

"Sure!" Danny grinned. "Tucker can hack into it and change what it says about Danny Phantom's DNA."

Jazz smiled. "Sounds like a plan, little brother."

Danny hugged her, smiling. That had been close.

There was a knock on the door. "Danny, Jazz?"

"Yes Mom?" Jazz asked.

"I'm going to need a sample of your hair, you two." Maddie opened the door and closed it behind her. "The Ghost Kid, I mean Danny Phantom, left behind human hair. That means he's possessing someone in Amity Park. The Mayor's going to ask everyone to turn in hair samples tomorrow, but I want to get some from you two right now, just to be on the safe side, so I can give them to that nice man who will be running the tests."

Jazz and Danny looked at each other and gulped. Then Danny smiled. "Sure, Mom."

She took out scissors and snipped a little from each of them. "There we go. Thank you."

When she was out of the room, Jazz whispered, "What do you think you're doing?" at Danny.

"I'll just switch my hair with some of Jack's before she leaves in the morning," Danny whispered back.

Jazz frowned. "I hope that works."

"He's related to me, right? So it should be okay. Come on, they're not going to check everyone that closely. Probably it'll be a computer program doing that, and Tucker can hack it." Danny shrugged it off. "It'll be fine, Jazz. I survived Walker trying to turn the city against me, some cops aren't going to catch Danny Phantom."

"If you're sure, little brother." Jazz smiled and stood up.

"Where are you going?" Danny asked her, frowning.

"I know a criminal psychologist in Las Vegas, I'm going to e-mail him and ask him about these people. So we know what we're up against."

"Thanks, Jazz."

"No problem, little brother."

Danny flopped down on his bed after she left the room. He'd handled Vlad Plasmius, Pariah Dark, Walker and his goons, Technis, Skulker, and even his own evil future self. How much trouble could some ordinary cops be?