Criminal cases related to sexual assault or rape are intricate, often relying on analyzing physical evidence. A key method for collecting DNA evidence is the Sexual Assault Evidence Kit (SAEK), known as a "rape kit."

Rape kits are essential evidence due to their DNA collection, which can identify perpetrators or exonerate the innocent.

If you're accused of rape, it's likely the alleged victim has been tested with a rape kit. A DNA match from this test can serve as powerful evidence toward a conviction. 

However, these tests are not foolproof, and many factors must be correctly managed to ensure reliability. 

A qualified California criminal defense attorney can assess the evidence and the handling of the SAEK to identify errors and determine if you can contest the test's admissibility in court.

The presence or absence of DNA evidence in a sexual assault or rape case can greatly influence the trial's outcome.

DNA evidence is not always definitive proof of a rape or sexual assault. It can also establish a defendant's innocence and often plays a vital role in securing a favorable outcome or reducing penalties.

Effectively utilizing DNA evidence in court can be challenging. If you're accused of violating California Penal Code 261 PC for rape, it's crucial to consult an experienced sex crimes defense lawyer who knows how to challenge this evidence successfully.

Key Takeaways

• A Sexual Assault Evidence Kit (SAEK), often known as a "rape kit" or Sexual Assault Kit (SAK), is a set of items that medical professionals use to preserve physical evidence after a reported sexual assault.
• The rape kit usually comprises swabs, bags, and documentation forms to gather and safeguard evidence from the person's body and clothing following an assault report.
• A healthcare professional, usually a specially trained Sexual Assault Nurse Examiner (SANE) or Sexual Assault Forensic Examiner (SAFE), performs the test, encompassing a detailed physical exam and the collection of biological samples.
• The SAEK procedure should be conducted right after the suspected incident. In California, evidence can be collected within 120 hours, or five days, following the assault.
• Administering the rape kit promptly increases the chances of collecting usable evidence. Furthermore, once the evidence is collected and preserved, the SAEK test must be processed within 120 days to remain valid.

What is DNA Evidence?

The term "DNA" refers to deoxyribonucleic acid, a self-replicating component of our chromosomes that carries unique genetic information. Each person has a distinct DNA, except for identical twins.

There are two main types of DNA: one found in bodily fluids like semen, saliva, and blood, and another from skin cells. DNA analysis is frequently used to confirm whether someone was present at a specific location or involved in a personal interaction.

In cases of rape, gang rape, rape by intoxication, or sexual assault, DNA is frequently collected at the crime scene where bodily fluids may be present. Additionally, DNA can be obtained from the victim's body and clothing. 

To exclude potential suspects, police often collect DNA samples from friends, family members, or individuals who may have interacted with the victim within 24 hours of the incident.

Medical personnel typically collect DNA from the victim's body shortly after the alleged assault, using specialized medical tools to perform what are called "rape kits." Examiners are specially trained to carry out these procedures efficiently.

Undisturbed DNA Evidence

DNA evidence must remain undisturbed until the victim can be examined. Therefore, victims are usually advised not to use the bathroom, bathe, change clothes, or clean their fingernails.

Proper collection of DNA by trained investigators, along with a strict chain of custody, is necessary to ensure the evidence's integrity and reliability for use in sex crime trials.

Forensic scientists analyze the DNA profile to potentially match it with offender records in the FBI's Combined DNA Index System (CODIS).

This is especially helpful when the perpetrator's identity is unknown. Additionally, DNA analysis can be used to attempt to identify or match a suspect. If the suspect isn't listed in CODIS, the court can require a DNA sample to be obtained.

Factors that Can Affect the Reliability of a Rape Kit Test

Although SAEKs are vital in sexual assault investigations, their reliability may be affected by various factors, any of which could compromise their court admissibility. These factors include, but are not limited to:

• Timeframe of Administration: The time interval between the alleged incident and when the Sexual Assault Evidence Kit is administered can greatly influence its reliability. Ideally, evidence is best collected within 72 hours of the assault, but in California, tests may still be conducted up to 120 hours afterward.
• Examiner's Expertise: The expertise and background of the healthcare professional performing the SAEK are essential. Errors in collecting, labeling, or storing samples can undermine the accuracy of the results.
• Chain-of-Custody: Properly handling, storing, and documenting the SAEK is crucial to preserving its integrity. Errors in collecting, preserving, or documenting the evidence, as well as mistakes in transferring it between parties, can compromise the kit's integrity, leading to false positives or negatives.
• Preserve Evidence: The way evidence is stored can impact its quality, as biological samples must be maintained at certain temperatures to avoid degradation.
• Cross-contamination Risk: Cross-contamination can happen during collection or analysis if strict protocols are not followed, which may result in incorrect identification.
• Sample Quality: The reliability of the test depends on the quality of the collected biological sample. Various factors, including the victim's hygiene, presence of substances such as lubricants or condoms, and the nature of the assault, can affect sample quality.

How Can You Contest the Admissibility of Rape Kit Evidence?

The presence of rape kit evidence does not guarantee a conviction. An experienced defense attorney will carefully examine the procedures for collecting, preserving, and analyzing the SAEK.

If any procedural irregularities or errors are found, the attorney can contest the admissibility of the evidence in court.

For example, if it can be shown that the SAEK was conducted outside the recommended timeframe by an inexperienced examiner or that chain-of-custody rules were not strictly followed, they might question the evidence's reliability.

This could result in the evidence being dismissed or its significance diminished, thereby affecting the case's outcome.

What are the Limitations of a Rape Kit?

A rape kit can provide DNA evidence and signs of injury, but it does not disclose other crucial details of the alleged crime. These include:

• Consent: A SAEK test does not confirm whether a sexual act was consensual; it only offers physical evidence that can support or challenge accounts of what happened.
• Time of Assault: The test cannot precisely determine the exact time of the sexual assault.
• Number of Assailants: When there are multiple suspected attackers, the SAEK may not precisely identify how many people are involved.
• Severity of Assault: The test cannot assess the severity or violence of the assault. It solely records physical injuries and biological evidence, which may not directly reflect the trauma experienced by the victim.

DNA evidence can sometimes be unusable or corrupted if bodily fluid samples aren't collected correctly. Even when sample integrity is verified, DNA can only establish certain facts.

For example, finding the defendant's DNA at the crime scene or on the victim confirms only that they were present at the same time. Contact our criminal defense lawyers for a case review. Eisner Gorin LLP has offices in Los Angeles, California.

Related Content:

• Statute of Limitations on Sex Crimes