used by us police offices. filming with their own cameras they inform this woman called dalia that house bill is just being killed they want to gauge her reactions as they suspect she may have hired a hit man to murder a spouse. try to come. back. with a camera. that. in fact no killing has taken place and the police have made up the story to try and confuse dalia what they want is a confession and a few hours later she will be charged with attempted murder in this case it was the cross-examination of dalia that led to the truth and then eased the way to her prosecution. among the police the interrogation process is considered a key element of the investigation where everything might fall into place which explains why in the united states this method of investigation has been pushed to

its very limits more than anywhere else in the world how does the interrogation take place is it an exact science can you tell when the suspect is lying and can you trust the confessions. in the united states everything is aimed at making the suspect crack from the architecture of the interrogation room it's a small room that disorientate suspects and allows for physical proximity. but doesn't work tiffany pawson son has definite views on this kind of police procedure. after a robust session in the interrogation room she confessed to killing her best friend . received.

well. and you just know it's going to be a very unpleasant situation it's kind of like walking. you walk in there and it smells of fear. lingering. before depression. everything just like the atmosphere. and they are in their. twenty's. but this time she's not being

picked up. the book the good cop bad cop routine i remember the. tall. dark complected. and had a very. the other one is kind of blurry my memory of him is blurry i think he played the good cop bad was the bad cop. introducing sergeant almost seven feet tall in his socks years of experience and not the kind of cop that's easily fooled he makes new bones about his tough questioning methods it's his whole.

there is a certain amount of acting for being. for doing interviews and especially when you're in that realm as far as a good cop bad cop so for the most part one is consoling caring you know almost. even putting off the other detective to the suspect saying you know he's he's a very mean guy he's a bad guy or whatever the case is trying to get closer with the suspect so hopefully this is suspect confides and quote unquote good cop. to phonies tof and for three days her constant lying drives the interrogators to destruction. she makes up stories about her movements shifts the blame onto others and dismisses the evidence that the police don't give up. you get defensive and when you get

defensive the detectives teams you jump on that why are you defensive then do you think only innocent people being attorney you thinking in terms of i say yes i need an attorney then you're saying oh you're guilty so you need an attorney is that what you're saying so it's very. it's very difficult the last interview kind of switched where i was very direct i was very accusatory and i even stormed out of the room once again some theater if you will to try to create a better atmosphere for the other detective he was very tall and very. over you all the time. overbearing and i can remember in trying to like get in my chair you know i need you like i'm sick of this my hair he'd be this far away from my face and i'm going to. just start saying anything else i could say. to me claims she acted in self-defense but it's an admission that.

she never told the truth. that was that was basically the sum of it she never told the truth and even then they had so i've never told the truth. tiffany played down her part in the murder the fact she doesn't break down under the questioning of an experienced policeman shows the limitations of the good cop bad cop method. so a far less theatrical technique is being adopted that has found favor with many american police. it's an approach left tenant doleman fervently supports in july two thousand and six a murder rocks the usually quiet town of dover in new hampshire laura perkins is shot dead by have a star the woman with whom she lives from the start had

a study claims it was self-defense off to lure a sniper in the leg of time i'm told and is put in charge of a questioning. look for eather stone a lawyer perkins lived in the downstairs apartment heather had two children laura had basically an adopted child from a previous relationship with some time stay with her there two on the night in question they'd been arguing since three four o'clock in the afternoon until two morning just constant arguing while constantly drinking everybody knew that had their head shot laura the question was always going to be what are the circumstances was this a case of an amp used a woman protecting herself or was this a case of an angry woman killing a girl for. other students interrogation begins at six in the morning just a few hours off to the murder left on a dome and takes have

a stone to the room set aside for the purpose a cold stock room which meets police standards. so this is the interview room that we spoke to the stone that morning heather was seated here. our camera was behind this this window right here. today behind bars. with short hair and looking tired she's barely recognizable. admitting she had not acted in self-defense. remarkably video of the interrogation was made available something that in most european countries would be unthinkable. has lied to the police about acting in self-defense.

the police patiently let's have a present her version of events. if she was born for a couple reasons one she really had an obligation to provide an explanation as to why her girlfriend is dead on the floor so she has a motivation to tell us something even if it's a lie she has motivation to talk to us she's vulnerable because she's tired she's vulnerable because she's emotional can really is upset that this happened she's not a stone cold killer by any stretch. i don't really know what i was trying to do what i was lying. pat i mean part of me thought that. they'd believe me and part of me said no they won't the police believe there

are certain facts that don't add up they even turn to a proven tactic of gaining the trust of the suspect softening her up by taking advantage of one of the vices cigarettes. if. it were and if it. is. the will to. get it this is. she was surprised she was surprised that we were going to her smoking because it's a no smoking building in a no smoking facility well whatever you know you want them welcome a small container if you're going to talk to us about this part of that just occurred i'm going to let you smoke and they let us smoke in return for information

. however tries to evade the questions something that intrigues the police. can. we. couldn't really explain where she was and where heather was i would excuse me where laura was during this whole violent struggle that apparently ensued so they were skeptical they're also skeptical because the injuries she had were minor scratches to a leg not stab wounds or big slashes but just minor cuts to the way. other claims lauren made these wounds when she stabbed her. in fact it's a story suggested going to joyce a friend she called just off to the shooting joyce also helps have a change the location of the crime to add weight to her assertion she acted in self

defense. put rings on him punched me in the face and then i cut my leg. and we thought that would. get me so i wouldn't go to jail. you know sometimes you see a story and it seems so you think you understand it and then you glimpse something else you hear or see some other part of it and realized everything you thought you knew you don't know i'm tom harpur welcome to the big picture.

wealthy british style. time buyers. market why not. come to. find out what's really happening to the global economy with max keiser there are no holds barred look at the global financial headlines tune in to cons a report on. the police heather to provide more details and she falls into this trap when she tries to act out the scene. oh sure. to do this. i'm a link this. she said here.

actually post. here. the police want to force heather into providing the exact details something they know full well is a nightmare for those who are lying it's ok sure is that. great. ok she was in her womb just to get she get my flu just. because she. doesn't see is that it's else so emotional that i couldn't even really grasp their questions or even answer them i was trying to but i was lying at first so they knew this so they were trying to get it out of me and i was. the sole motional that. even their questions were like

spanish to me. just saying good do it is exist. then you. a very. very. serious dearie to. see this is. the fact that she's tired probably made it easier for us because it was it's hard to keep up a lie it's very easy to tell the truth over and over and over again the tell the truth is the truth you just tell a story about what happened if it's the truth you have to do is tell the truth over and over if you tell lies you have to work to tell lies you have to work to construct something that didn't happen. but after two hours of questioning the detectives know they're getting nowhere and move on to plan b. they put in the joyce is the friend who suggested the self-defense ploy has confessed to everything. detective watkins and says listen joyce is already talk to

us we already know everything that george has told us well we didn't know that joyce i had talked to joyce she'd lie to me now while we're talking to heather we're reinterview injuries detective harrington would been in here is now interview enjoys but we don't know what she said we're stuck in here with have so that's a bit of that's that's quite frankly a lot. exhausted and betrayed by her own life have finally caves in after three hours. later that year to feel better. is there that i understand. one of the things i kept saying to her is she would talk about her children and she was afraid her children she would never see her children again their children will grow up without a mother and my point to her was you know what's going to look better what's going to work out better for you if you come in here and lie to us about this the death

of your girlfriend or you tell us the truth. you know law. i just figured this is it. just tell the truth. will.

do. they went through a lie to get the truth. i went through a lot to tell them the truth i'd told them exactly. i told them. how i remembered it. but i wasn't in the right state of mind. so i don't even remember what i told them

. the other says she has no regrets about having finally admitted it. ruth she still has twenty four years of a sentence to serve. it's every investigator's dream to get the suspect to confess off the questioning the quest for the truth is a holy grail for every policeman and investigator. and since the one nine hundred thirty s. scientists have tried to create an infallible lie detector machine or polygraph. it detects human reaction through captors placed on the arms the chest the fingers and under the bus i. remember. yes or no question. were you born in the month of may. did you steal that watch from the poster.

know. any abnormal physical reaction can be interpreted as a sign of lining. up to find out more about polygraphs which were considered to be a form of truth serum for so many years we seek the opinion of dave brandt a florida based policeman who specializes in they use. one of the people who did research on polygraph was the guy who is better known for creating the comic books wonder woman his name was marston he was a physician and he wrote comic books on the side and what's interesting if you know anything about wonder woman one of the tools that wonder woman had was called the lasso of truth where she would put a rope around the bad guy and that caused him to have to tell the truth while the lasso of truth that he uses is literally this the blood pressure cop that we used

today that goes around the subject's arm sort of a misnomer the instrument is a polygraph instrument it's record. physiological data it doesn't detect lies anymore than cardiogram detects heart attacks it's up to me to analyze the data that i record with a polygraph instrument to determine if a person is being truthful or deceptive as you see it rise to the line that's an increase in blood pressure ok so on this question here for example this was a controlled question this is a lie the subject answered no which is why there's a minus sign there and you'll see there's a rise in blood pressure very subtle rise in blood pressure but it's there it's clear to see when i put a line there there's a certainly an amplitude change here and also you'll see that his breathing changed from the normal respiration out here at this point he actually stopped breathing slightly during that question that's a control question that we know was a lie. dave bryant defends the tool he uses for his work

adding the majority of police departments and even the cia use the polygraph in europe however it's bad because of it's on reliable results. steve tourism is a law professor in chicago he's an expert in interrogation techniques and has been able to obtain the freedom of several suspects on death row life sentences often their alleged confessions he's one of the polygraphs fiercest critics. they hook the person up to this machine they tell them that this machine is infallible and it's objective and it's neutral it doesn't know you this machine doesn't have any stake in whether or not you're in is sintered guilty. and when they fail that polygraph test or better yet when they're told they fail that polygraph test it brings them down to a place of hopelessness where it's easier to get them to confess and we have

numerous cases where police officers lie about polygraph results and get innocent people to confess. knowing the polygraph is not always dependable scientists have been urgently researching brain i and voice patterns instead so far without much success the human spirit seems capable of resisting even the most determined efforts to extract the truth. and to read a private company based in chicago that has set up a method based largely on human psychology. today it's the largest company in the world dealing with interrogation techniques staffed by former detectives it has trained almost three hundred fifty thousand police officers. the company uses videos to show the one thousand and one ways to make a suspect talk. let me ask you did you force her to have sex with you no absolutely not did you take the money from the man. a man i told you i had nothing to do with

the saying ok you sell me drives. were. read claims that offer it's training programs police officers will be able to spot lies in almost eighty five percent of cases it's a remarkable claim but despite its apparent success rate the company has turned down all requests to be interviewed it might be because of steve driza and other experts who severely condemn its theories a simplistic and it's methods as overly coercive. all the studies show that people can deception at rates better than a coin flip may be slightly better than fifty percent ok. they're leaving these trainings thinking that they can detect deception that eighty five percent that's just hogwash but it drives the interrogation in

a way that it makes it much more likely that they're going to obtain false confessions. but reid has taken note of such criticism and has improved its methodology yassky instructors to be more prudent when it comes to the signals that could be interpreted as lying nevertheless the video still teach the same controversial process of recognizing lies through body language. a deceptive suspect may orient his body away from the interviewer in the front of the line position posture is the rigid posture suspect the so preoccupied with his deception that he appears frozen in the chair and even unable to move the purpose of an interrogation unfortunately all too often is not about getting the truth it's about getting a confession so innocence is taken off the table and then over time the interrogator will give the suspect two choices one in which the

crime that the suspect committed. portrays a suspect is a monster and another path the crime is accidental and over time after his denials are rejected over and over again the suspect will choose one of those two paths because one of those paths leads to leniency and the other one leads to greater punishment. it's a choice that allows no room for the innocent and one that frank stood up to make more than twenty years ago. dear and just. enjoy the maze in the nature. of the old. back to those big nose and two and a half years later when i got arrested for over twenty years old. and how long

did you spend. half years in prison. for a crime i did not do. well with. science technology innovation all the least developments around russia we. covered. here is mitt romney trying to figure out the name of that thing that we americans call. a dollar. i'm sorry i'm just a guy who cares an awful lot but you sir are a fool. that is my terrorist cells in your neighborhood all want to give us

a defeat terrorism the eclipse all the crystal ball can secure good stuff out of the. you know the corporate media distracts us from what you and i should care about because their profit driven industry that sells of sensationalistic garbage because that breaking news i'm not me martin and we're going to break that. download the official location to your cell phone choose your language stream quality and enjoy your favorites. if you're away from your television or it just doesn't matter now with your mobile devices you can watch on t.v. anytime anywhere.

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well i'm in washington d.c. and here's what's coming up tonight on the big picture in the wake of the george zimmerman not guilty verdict the american legislative exchange council alec is back in the news again but while you probably know about that support for stand your ground and shoot first laws you're likely haven't heard of its plan to end the public school as we know it more on that would happen tony just a moment also if they really believe their own rhetoric the n.r.a. and its your friends in the republican party would start talking about giving people like trayvon martin easier access to firearms tell you why in tonight's really take.