2601 Coolidge Rd, Suite 203
East Lansing, MI 48823
517-336-7734 or 888-875-7574
Info@Semen-Detection.com

FAQ Semen Detections ] FAQ Semen and Sperm ] FAQ Underwear ] [ Types of Samples ]

What is the best test to do for semen on clothing, cloth, or other items.
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  • What is the best test to do for semen on ladies or children's panties or underwear?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. 

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It is important that the samples shown on this page are dried at room temperature and stored in a paper envelope (except fluids).  If the sample cannot be sent immediately for testing, please contact us for storage instructions. 

 

  • What is the best test to do for semen on male underwear?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. 

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  • What is the best test to do for semen on cuttings from panties or underwear?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. 

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  • What is the best test to do for semen on tampons or feminine pads?  These two items differ greatly in they type of performed extraction.  A feminine pad is treated similar to a pair of panties while a tampon is hydrated and the squeegee is tested.

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  • What is the best test to do for semen on sheets or pillow cases?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. Many customers elect to order the non destructive test due to the value of the linens. 

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  • What is the best test to do for semen on a condom?  Customers have sent hundreds of condoms and most skip the semen/sperm/saliva test.  In many cases, that was a bad decision.  Many condoms are unused and are moist from the lubricant providing the appearance of sexual activity. Condoms are often used in pranks and may have male or female DNA from handling even though no semen or sperm is detected.  Unless you are 100% sure the condom was worn on the penis, you should have the semen/sperm/saliva detection test performed prior to DNA extraction.  The case below illustrates a condom that tested negative for semen and saliva.

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  • What is the most positive test outcome from semen (cum) in my wife's panties?  The following results illustrate the highest test results possible.

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  • What is the best test to do for semen on Kleenex tissue or Q'tips?  The most accurate and sensitive method is to send the entire sample to allow us to hydrate the sample for testing while preserving the integrity for potential DNA profiling.

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  • What is the best test to do for semen on an expensive blouse or suit?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. Many customers elect to order the non destructive test due to the value of the item. We will evaluate the item for the non-destructive test that you ordered and contact you prior to testing if the destructive test is significantly justified. 

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  • What is the best test to do for semen on cloth wash cloths or towels?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. Due to the size of the item, if you notice a specific questionable stain you should highlight the periphery with a black or noticeable marker.  Please note that cloth wash cloths and towels frequently have trouble providing a stable DNA profile due to contamination and or bacteria growth (this will not effect the detection of semen).

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  • What is the best test to do for semen on furniture covers, seat cushions, or pillows?  Due to the value of these items, it is best to remove the cushion and allow us to review the stain under special UV lighting.  Our recommendations will lean toward the non-destructive test if at all possible. 

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  • What is the best test to do for semen on scrapings?  Place the scrapings in the smallest paper envelope possible.   We receive many of these samples scraped off the crotch of the ladies panties with a razor or blade.  We also receive wood and plastic scrapings or shavings.

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  • What is the best test to do for semen on food such as a pizza or a sandwich?  If the stain is not highly noticeable on the surface, we will hydrate the food into a known concentration for testing.

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  • What is the best test to do for semen found in a shower drain?  We separate the semen from filter and the hair strands.  If the test is positive then the hair may also be useful to determine the contributor(s).  

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  • What is the best test to do for suspected semen on a diaphragm?  The amount of discharge on the diaphragm dictates the method of collection or extraction.  A diaphragm covers the uterine cervix and blocks the passage of sperm from the vagina into the rest of the reproductive tract and normally is not over saturated as compared to a male or female condom.  This can normally be tested for semen, sperm, and saliva in the same manor as an IUD (intrauterine device).

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  • What is the best test to do for semen collected on Scotch tape or masking tape?  If possible do not fold the tape over on itself.  Stick the tape to a piece of wax paper.  We will dissolve the adhesive and hydrate the sample for testing while preserving the integrity for potential DNA profiling. 

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  • What is the best test to do for semen that I have spit back into a plastic bottle or can?  If the container can be tightly closed then send the entire product in to be centrifuged.  If is is not possible to close the item, pour the contents through a new coffee filter (pour slowly as close to the bottom of the filter as possible).  Dry the filter in the open position at room temperature then send the filter paper in. 

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  • What is the best test to do for semen on a makeup applicator such as a blush pad?  Depending on the size of the applicator, we normally shave the surface fibers off of the applicator for testing. 

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  • What is the best test to do for semen on carpet?  The most accurate and sensitive collection is to take cuttings from the sample and allow the stain to be extracted from the map of the fiber. Wear latex gloves when handling and cut the stained portion off using a single edge razor blade and place in a new paper envelope.  Tape the envelope shut.  Please note that carpet fibers frequently have trouble providing a stable DNA profile due to contamination (this will not effect the detection of semen).

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  • What is the best test to detect semen in soft drinks or juices?  Testing fluids (other than water) is highly intricate.  SSDI can detect less than 2 ng (one billionth of a gram) per ml (milliliter) of semen in fluids.  That equates to less than 1l (microliter) in a standard water, coke, or juice bottle.  The average ejaculation will vary widely between men and may contain between 0.1 and 10 milliliters (100 to 10,000 l). A teaspoon is 5000 l  and a tablespoon is 15,000 l.  Here is a illustration of 1l as metered dye from a GeneMate .1l-2l calibrated pipettor placed on a DNA storage card (FTA) as compared to one drop of dye from a standard eyedropper.  SSDI can detect 1l of semen in a bottle or can of soda, water, juice, or beer.

The most important issue in dealing with soft drinks and juices is establishing the pH so that it does not destroy the gold labeled anti murine antibody complex in the immunochromatographic strip test.  Our proprietary process includes an array of control standards and unique devices such as the 15 mL conical tube spin baskets we manufacturer for the centrifuge (not available for resale). 

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These fluids tested positive for human saliva and negative for semen.

 

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