Our testing procedure was developed in coordination with a major university forensic laboratory to ensure 100% accurate results.

Twenty-six percent of SSDI's laboratory tests are positive for semen.

Expert Witness
Testimony

I hired SSDI on behalf of a client who had been charged with Indecency with a Child. SSDI went to the alleged scene of the crime to look for any physical evidence that would support the allegations against my client. From the initial sweep with an ultra-violet light to the comprehensive semen detection testing, SSDI did all the things the detectives on the case should have done for the prosecution. SSDI provided an excellent report regarding their procedures and their findings. Ultimately, the report served as the basis of SSDI's testimony at my client's jury trial. He was easily qualified before the Court as an expert and neither his credentials nor his report was seriously challenged. My client was acquitted after a brief jury deliberation. The jurors discussed the case with me after the verdict. The jurors agreed that they were very impressed with the work SSDI did on the case. They cited the work and testimony of SSDI as one of the primary reasons they returned a verdict of "Not Guilty." My client and I could not be happier with SSDI. I plan to use them again in cases like this one because they give me and my clients the advantage we need for trial.

Attorney D.P. from Denton Texas

How the test is performed:

All samples are received at one location. Our shipping and receiving department handles each and every order wearing sterile gloves. We prepare a login folder for each case with the following:
- Customer Invoice
- All related notes and requested mailing address
- Serialized test result sheet
- Serialized storage pouch
The login folder is then transferred to the laboratory.
- The lab technician reviews all paperwork
- Labels are printed and attached to the serialized microtube, PSA cartridge, microscope slide, and storage pouch
- The test package is moved to the testing area of the laboratory
Test Preparation
- The technician establishes a sterile work surface at the beginning of every test.
- The five labeled microtubes are placed in microtube tray and chemicals are added
- Five 2mm micro punches are obtained near the label of the article to be used as the cloth control sample
- Up to thirty 2mm micro punches are obtained from the stained area and distributed between two microtubes
- This link will provide examples of the collection process on the most common tested article which is ladies panties.
Testing
- Acid phosphatase reagent is placed into 4 of the five microtubes
- 200 µl of solution is taken from the sample tube without reagent for the prostate specific antigen test
- 100 µl of solution is taken from the sample tube without reagent for the saliva test.
- 40 µl of solution is drawn from the sample tube without reagent for the microscopic inspection
- 120 µl of sodium hydroxide is added to the four reagent microtubes and the acid phosphatase results are read
- The prostate specific antigen and saliva test results are read from a cartridge within ten minutes
- The slide is mounted to a powerful phase microscope and is evaluated for the presence of sperm
Tested Item Disposition
- The tested articles and proof of test can be stored in the forensic freezer for 90 days if the test is negative and one year if the test is positive at no additional charge
- The article can be returned with the results for an additional $10 mailing charge.
- The customer can request that the tested item is destroyed
Reporting
- The technician makes detailed notes on the item log sheet for each stage of the test and the type of reaction the test had to each of the three final stages
- A final report is immediately prepared
- The report and login folder are provided to the quality control department for thorough review
- The report is finalized with the lab technician's notarized signature
Results
- The customer login sheet is reviewed for the requested method of receiving results
- The technician completes one or all of the following based on the customer request:
  - Call customer with results and provides detailed explanation of the test results
  - Email customer the test result report
  - Mail results to customer or designated third party of customer
  - Many customers prefer to only contact us and provide the unique test order number for their results
  - Folder is filed in technicians area for providing results
Record Keeping
- Detailed test outcome information is entered into our database.
- Statistics are published to assist future customers.
- A report original and the test datasheet are permanently maintained in the file storage area.
- Important samples, especially unique results or potentially competitor challenged samples are held in freezer 2 permanently.