Read Detective(11) online free by Arthur Hailey

Detective(11)
Author: Arthur Hailey

Walden was dusting wood surfaces with a black graphite powder mixed with tiny iron filings, and applied with a magnetic brush; the mix adhered to moisture, lipids, amino acids, salts, and other chemicals of which fingerprints were composed.

On smoother surfaces glass or metal a nonmagnetic powder was used, of differing colors to suit varied backgrounds. As she worked, Walden switched from one type of powder to another, knowing that prints varied depending on skin texture, temperature, or contaminants on hands.

Officer Tomas Ceballos had reentered the room and briefly stood watching Walden at work. Turning her head, she told him, smiling, "Finding good prints is harder than people think."

Ceballos brightened. He had noticed Walden the minute she arrived. "It always looks easy on TV."

"Doesn't everything? In real life," she explained, "it's surfaces that make the difference. Smooth ones like glass are best, but only if they're clean and dry; if there's dust, prints will smear they're useless. Doorknobs are hopeless; the area's not flat, too small for good prints, and just turning a knob smears any prints made." Walden regarded the young officer, clearly liking what she saw. "Did you know fingerprints can be affected by what someone ate recently?"

"Is this a joke?"

"No joke." After another smile, she went on working. "Acidic foods cause extra skin moisture and clearer prints. So if you're planning a crime, don't eat citrus fruits beforehand oranges, grapefruit, tomatoes, lemon, lime. Oh, and no vinegar! That's the worst."

"Or the best,...

Read full: Read Detective(11) online free by Arthur Hailey

Comments

Popular posts from this blog

Read Shopaholic to the Stars (Shopaholic #7)(7) online free by Sophie Kinsella

Read To Touch a Sheikh (Pride of Zohayd #3)(13) online free by Olivia Gates

Read Detective(21) online free by Arthur Hailey