# DNA

**URL:** <https://boards.straightdope.com/t/dna/30970>\
**Category:** Factual Questions\
**Created:** [August 27, 2000, 10:11pm UTC](https://boards.straightdope.com/t/dna/30970 "2000-08-27T22:11:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![stmc62](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@stmc62](https://boards.straightdope.com/u/stmc62)\
**Post date:** [August 27, 2000, 10:11pm UTC](https://boards.straightdope.com/t/dna/30970/1 "2000-08-27T22:11:30Z")

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If I decided to kill my lover/husband immediately after sex, then had sex with 5 other guys, would the DNA evidence still be able to be used against me in court? Don’t worry Satan…this will never get back to Libby.

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**Author:** ![ellis555](https://avatars.discourse-cdn.com/v4/letter/e/e36b37/32.png) [@ellis555](https://boards.straightdope.com/u/ellis555)\
**Post date:** [August 27, 2000, 10:35pm UTC](https://boards.straightdope.com/t/dna/30970/2 "2000-08-27T22:35:53Z")

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I’m not exactly clear on what you’re asking here, so let me know if this doesn’t answer it for you.

The different sperm types could definitely be sorted out. ie, they could sequence it all and come up with six different DNA signatures. However, for the six sperm samples to all still be around, you would have to have had rapid subsequent acts of intercourse. In such a short time frame, there wouldn’t be enough DNA degredation to determine which sperm sample was ‘deposited’ first.

And I have no clue on the legal issues aspect.

-ellis