ABSTRACT
Mouth and lips Bruises may be found on the lips and especially inside on the buccal surfaces, from rough kissing. The lips may have been forced back on to the edges of the teeth, causing abrasions, bruises and even laceration of the buccal surface. Swabs should be taken from the mouth in every case before substantial manipulation for examination, to seek evidence of seminal fluid from oral penetration. Though such swabs rarely yield a positive result as to the presence of spermatozoa, modern analytical methods may be able to detect other components of the seminal fluid or the presence of male epithelial cells.
