The best Top 10 modern day homicidal poison?

In forensics, the more peculiar something gets, the easier it is to trace the culprit. Oral ingestion of poison is the easiest way for homicidal poisoning has a high failure rate. People have survived cyanide ingestion even, although it’s very rare. Ingested poisons are also the easiest to catch in a laboratory due to the higher quantity of unmetabolized poison and their characteristic post mortem signs in the gastrointestinal tract. Injection or inhalation require lesser

"The best Top 10 modern day homicidal poison?"