跟讀練習: How forensic scientists fight crime by analyzing handwriting - 通過影片學習英語口語

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Analyzing handwriting to help solve crimes is not just something you see in the movies, it's real.

And tonight, Washington's most-wanted's Perella Lewis gives us a rare look at how forensic scientists do it

and why our imprints are so unique.

It can be writing on a wall,

writing on an object, so a variety of things.

Brett Bishop is one of only three forensic scientists in the state specializing in document examinations and handwriting.

We're looking at things like proportions in the writing,

style, letter formations, spacing, slant,

connections between letters, stroke direction, clockwise, counterclockwise.

The process to do his job takes years of specialized training before they're handed documents,

forged checks, or even ransom notes for analysis.

And if you think you can throw him off by writing with your opposite hand,

he says no way.

Generally speaking, that master pattern still exists,

whether they're writing with the pen in their mouth,

between their toes, left hand,

right hand, It's still coming from that same mental copy book image.

Brett demonstrated a technique used to recover writing from something other than the original source.

Or just write anything.

I quickly jotted down the first thing that came to my mind.

It's a ransom note.

Then I was asked to do it again.

So now on this piece of paper, just write anything.

And with that, he goes to work.

Try and get the wrinkles out as much as possible,

so they don't interfere with the image.

This part of the process is pretty fast.

Place this on top.

So now I'm going to turn on toner,

and toner is going to be dispersed in this hood.

And you'll see it collect in the areas where your writing was.

And within minutes, my text from underneath the paper appears.

And that's it.

He uses this technique for several things, including fraud.

Here's an example of a document changed to add an extra zero.

So this is what it looks like to the naked eye.

And then this is under the VSC.

And he also trains election officials to verify signatures.

Some things that are significant are what to evaluate in signatures,

what kind of handwriting characteristics to look at of this curved downstroke.

He fights crime one word at a time and brings those to justice who could otherwise be written off.

I think it's very important from,

you know, those threat letters,

harassing letters, bank robbery notes,

to even, for example, these financial crimes.

For justice to be brought forward in some of these instances where something as simple as,

you know, taking money from somebody else, it's still wrong.

And there's still a penalty to be paid for that.

Pharrella Lewis, Washington's Most Wanted.

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跟讀練習: How forensic scientists fight crime by analyzing handwriting - 通過影片學習英語口語

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