Why is bleach used to clean up a crime scene?

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I’ve seen this in multiple movies/shows where they just dumb bleach on everything. What does it actually do?
Does it erase things like finger prints?

In: Chemistry

7 Answers

Anonymous 0 Comments

I used to do trauma cleanup, bleach was rarely used. We had specialized chemicals that were less likely to stain or damage the stuff being cleaned.

But it was even more likely that we would just remove and replace stuff. Unless it was structural or would cost a ton, we’d just cut out the affected material and replace it. Carpet? Cut out the *red* bits and put it in bio disposal, throw away the rest, replace with new. Same with linoleum, underlayment, subfloor, unfinished drywall. Furniture? Complete loss, replace it.

Cleaning bio material is time consuming and expensive, and insurance companies don’t want to spend money on it if there’s even a chance that the end result won’t be perfect. *And it must be perfect*. The last thing you want is some family replacing their carpet 10 years in the future and seeing a big red reminder of the time dad couldn’t stand living any longer.

Edit: I typed all that before I realized you were talking about criminals covering their tracks, not actual cleanup. Sorry.

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