Forensic scientists are able to use ink chromatography to solve crimes by matching documents or stains found at a crime scene to the marker or pen that belongs to a suspect. Forensic scientists analyze the unknown ink and compare it to writing utensils collected from possible suspects.
Symptoms of Variegate Porphyria The hepatic porphyrias primarily affect the nervous system, resulting in abdominal pain, vomiting, acute neuropathy, seizures, and mental disturbances, including hallucinations, depression, anxiety, and paranoia.
Signs and symptoms of dysarthria vary, depending on the underlying cause and the type of dysarthria, and may include: 1  Slurred speech. 2  Slow speech. 3  Inability to speak louder than a whisper or speaking too loudly.  Rapid speech that is difficult to 1  understand. Nasal, raspy or strained voice.  Uneven or abnormal speech 1  rhythm. Uneven speech volume.