Can lie detectors be used in court
Debate Rounds (3)
I will allow my opponent to make their argument first, but I will summarize my objective in round one. I will try to show that a lie detector or polygraph has major flaws. That there is many better alternatives to the lie detector in proving someone's guilt. That it is very possible to make a lie detector results invalid.
I will like to thank my opponent and wish my opponent the best of luck.
First of all lie detectors do not detected lies they instead detect a person's blood pressure, heart beat, respiratory rate, and perspiration then ask a question (example: Where were you on the night of June 11, 2013) then the polygraph examiner compares the results to the person's normal levels if there is dramatic change in the results it can be interpreted as a lie. This has problems because is it not logical to assume that someone can get away with lying as long as they are calm under the questioning even if they are guilty or if you take a nervous person and ask them tough questions that could cause stress that they could look like they are lying while in reality they are not. This has lead to more false positives then false negatives when it comes to testing which means more innocent people are looking guilty then guilty people looking innocent. If a case is all dependent on a lie detector results it could more likely to send a innocent person to jail than a guilty person free. This is way Lie detectors should not be used in court.
To my final point I will show much better alternatives than a lie detector for evidence. DNA (deoxyribonucleic acid) has proven to be 99.99% accurate with non-tampered evidence. Video severance has now become a major source of evidence when it comes to the courts because like the old saying "the eye in the sky don't lie" unlike a lie detector which can. Fingerprinting is still common and accurate no one person has the same fingerprint, palm print, foot print which means if a match occurs with a print it is very likely to be correct.
Lie detectors are becoming more advanced, but until they are able to detects lies then they should not be used in court.
Zhazirka forfeited this round.
1 votes has been placed for this debate.
Vote Placed by Subutai 3 years ago
|Agreed with before the debate:||-||-||0 points|
|Agreed with after the debate:||-||-||0 points|
|Who had better conduct:||-||-||1 point|
|Had better spelling and grammar:||-||-||1 point|
|Made more convincing arguments:||-||-||3 points|
|Used the most reliable sources:||-||-||2 points|
|Total points awarded:||0||6|
Reasons for voting decision: FF. Also, better arguments by con.
You are not eligible to vote on this debate
This debate has been configured to only allow voters who meet the requirements set by the debaters. This debate either has an Elo score requirement or is to be voted on by a select panel of judges.