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Author: randomsurfer

Oct 30th 2013 at 10:58:21 AM

^^^^I would expect that most of the time, if the detective knows or suspects that a specific ingredient poisoned the vicitm but it isn't general knowledge, they wouldn't actually use it but just say that it's been used, feigning that they don't know it's been poisoned. The only person who freaks out about being poisoned is the one who put the poison in it.  For example, in the ''Bones'' episode they don't acutally use the poisoned tea, they just give everybody a cup of tea and say it's from the victim's private stock.  The one who doesn't drink - or who freaks out afterwards if they only announce that after everyone has drunk some -is the one who knows the tea was poisoned.

OTOH I could see someone like Patrick Jane from ''The Mentalist'' giving everyone (say) tea, and then saying that it was the victims and had been poisoned.  Now the only one who ''isn't'' freaking out about being poisoned is the killer, because he knew not to drink in the first place.  Again though, in this scenario Jane wouldn't have actually used the poison, just say he did.

See LyingToThePerp.