![]() ![]() If the object is small, mark it, wrap it, and seal it in an envelope. If hair is attached, such as in dry blood, or caught in metal or a crack of glass, do not attempt to remove it but rather leave hair intact on the object.If possible, use the fingers or tweezers to pick up hair, place in paper bindles or coin envelopes which should then be folded and sealed in larger envelopes. The value of the Laboratory examinations of such specimens will depend upon the amount of hair recovered and the characteristics found in the examinations. Human hair can be compared to determine whether or not two samples could have had a common origin.An examination of human hair can occasionally reveal the possible race of the individual from whom it came and the part of the body from which it originated.If damp, allow fabric to dry completely before packaging.Label all garments such as undershorts, panties, or other exhibits and package each garment separately.It is very important that the instructions on the kit be followed with care in order to gain the greatest benefit from the collected evidence. A Sexual Assault Evidence Collection Kit is used to collect evidence from the victim. For sex offense cases, the victim should always be examined by a physician.Allow any stains to air dry, wrap in paper, and package evidence in paper bags. Seminal stains are often, but not always, found on clothing, blankets, sheets.Collect on a sterile gauze pad or swabs, allow to air dry and package in paper. ![]() Refrigerate, do not freeze standards collected in yellow stoppered vacutainers.Such items should be kept at room temperature and submitted to the lab as soon as possible. Any condensation from thawing could disturb or destroy such evidence. (Obligation under People vs Nation and Hitch that a reasonable and good faith effort be made to preserve perishable evidence)Ĭonsider special handling of non-absorbent items on (metal or plastic). Handling and Storage of Physiological Fluid Evidence Also, make sure that some bloodstained garment worn by the individual has been air dried and frozen to serve as a secondary standard. These samples are not retained for long periods by the hospital, so it is important to act promptly. If the victim is injured to the extent that a transfusion is necessary, make an effort to obtain or begin necessary procedures to obtain the pre-transfusion sample collected by the hospital. Note these are distinguished from the BA tubes which have grey stoppers. In such cases, proceed also with collection of a secondary standard as described below.įor typing purposes, have sample drawn into yellow and purple stoppered vacutainers. In rare cases when no liquid blood is available, ask pathologist to collect a section of liver, bone, and/or deep muscle tissue and freeze for typing. Request that pathologist obtain the sample directly from the heart into a yellow (ACD) or purple stoppered vacutainer (some labs request both). Never attempt to wipe dried stains from an object using a moistened cloth or paper.Wash and dry the tool before each stain is scraped off. Scrape blood from objects using a freshly washed and dried knife or similar tool. Do not scrape directly into evidence envelope. If impractical to deliver the whole object to the Laboratory, scrape the stain onto a clean piece of paper, which can be folded and placed in an envelope. On large solid objects, cover the stained area with clean paper and seal the edges down with tape to prevent loss or contamination.On small solid objects, send the whole stained object to the Laboratory, after labeling and packaging.Do not attempt to remove stains from the cloth. On clothing, if possible, wrap the item in clean paper, place the article in a brown paper bag or box and seal and label container.If not completely dry, label and roll in paper or place in a brown paper bag or box and seal and label container.Hang clothing and similar articles in a room where there is adequate ventilation. Do not heat stained material or place it in bright sunlight to dry.If unable to deliver to the Laboratory, or if the object must be mailed, allow the stain to air dry completely before packaging.If close to the Laboratory, deliver stained object immediately.Delays beyond 48 hours may make the samples useless. It should be refrigerated or frozen as soon as possible and brought to the Laboratory as quickly as possible. ![]() Contents Blood StainsĬontrolled Substances and Medicinal Preparationsīlood that is in liquid pools should be picked up on a gauze pad or other clean sterile cotton cloth and allowed to air dry thoroughly, at room temperature. Please check with your supervisor if you have any questions. This document provides evidence collection guidelines for the following types of evidence. ![]()
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