morals are only obsessed with profit the second you even slightly threaten their cash well they will instantly start cowering at your feet sometimes but that's just my opinion. the so. i.

the video might be shocking but it's simply a ploy used by us police offices. filming with their own cameras they inform this woman called dalia that housman is just being killed they want to gauge her reactions as they suspect she may have hired a hitman to murder a spouse. or the like oh ok i'll try to cut. back but. i can't imagine that. in fact no killing has taken place and the police have made up the story to try and confuse duniya 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 sauce mike is lying and can you trust the confessions. in the united states. everything. from the architecture of the interrogation room it's a. physical. kind of police procedure. in the interrogation room to killing her best

friend. and you just know it's going to be a very unpleasant situation it's kind of like walking. in there and it smells of fear. pick up that lingering. before depression. everything like that. 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 cocky attitude. 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 role 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. but to phonies tough going for three days how 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 team to jump on that why are you defensive then do you think only innocent people when you're trying to you thinking in terms of i say yes i need an attorney when 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 trying to like get in my chair you know like i'm sick of this my r.d. be this far away from my face and i'm going to. and i 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 i would that is 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 and 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 of a study claims it was self-defense off the lure i stabbed her in the leg left town i'm told and is put in charge of a questioning. look for aether stoner laura perkins lived in the downstairs apartment heather had two children laura had basically an adopted child from a previous relationship that sometimes 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 abused 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 have the stone that morning heather was seated here. our camera was behind this this window right here. today behind bars seven years short. she's barely recognizable she was handed a. 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. she was born to 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 is mortician to talk to us she's vulnerable because she's tired she's vulnerable because she's emotional she 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. pot 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 then turn to a proven tactic of gaining the trust of the suspect softening her up by taking advantage of one of the vices cigarettes is. it. good if you do it but. if. you will just. get it with this. she was surprised she was surprised that we were going to smoke and because it's a no smoking building in a no smoking facility well whatever you know you're going in 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't. we. couldn't really explain where she was and where heather was i would be 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 the way. other claims laura made these wounds when she stabbed her. in fact it's a story suggested going 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. we thought that would. get me so i wouldn't go to jail for. wealthy british style. that's not on the right time. for the. markets why not. find out what's really happening to the global economy in these kinds of reports on our t.v. . dramas that can't be ignored to . stories others refuse to notice.

the faces changing the world writes now. the picture of today's leaves. on demand from around the globe. dropped. to fifty. the police heather to provide more details and she falls into this trap when she tries to act out the scene. oh sure so

close to doing this. i'm not going to this. just who. should stand here. actually post it. here or to. the police want to force heavy into providing the exact details something they know full well is a nightmare for those who are lying meat or fish or worse that. break out like this oh ok so how does how we live just to fish or get laid low just. because she. doesn't see is that it's all 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.

sol motional that. even their questions were like spanish to me. they should see just say no to it isn't this going to do it. very soon steering to. the show. see this is. the fact that she's tired probably made it easier for us because it was it's hard to keep up the 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 why 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 joyce has told us well we didn't know that joyce i had talked to joyce she lied to me now while we're talking to heather we're reinterviewing joyce detective harrington who had been in here is now interview enjoys but we don't know what she said where 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 lying have finally caves in after three hours. later they're. still there. it is there that. 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. i just think it. this is it. and just tell the truth.

is i. think. they went through a lot to get the truth. i went through a lot to tell them the truth i 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 the truth she still has twenty four years of her sentence to serve. it's every investigator's dream to get the suspect to confess after question. 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.

did you steal that watch from the poster. know. any abnormal physical reaction can be interpreted as a sign of lying. 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 bryant 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 recording physiological data it doesn't detect lies any more 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 they're alleged confessions he's one of the polygraphs fiercest critics. they hope 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 innocent or 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. to man i told you i had nothing to do this thing ok you tell me dr. 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't conception rates better than a coin flip may be slightly better than fifty percent ok. there is leaving these trainings thinking that they can detect deception it eighty five percent that's

just hogwash but it drives the interrogation in a way that 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 by asking 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 a. position of posture is the rigid posture suspect the so preoccupied with this 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 stirling to make more than twenty years ago. dear and just. enjoy. the major. killed seventy four years old.

two and a half years later is when i got arrested for. twenty eight years old. and spending half years in prison. for a crime i did not do. interview .

took place right on the scene. first street. and i think you're. on our reporter's twitter. and instagram. to be in the know. on the law. in cuba is not a failure of the cuban people it's a failure of sidel castro and a. live one assassination taj backed by the officials both hostility and suspicion encouraged by the government these operations against cuba were known to the attorney general of the united

states the president united states himself the defendant's intelligence arms had to infiltrate to resist. special agents freedom fighters terrorists. who is. well no real terrorist or you stand up on archie. but he sees things that sighted people don't notice. these days. but he hears things that most people never to call him disabled but he's the world's first deaf and blind doctor of science. professor i think other savor of. the great life lived against the odds.

the masquer said ours here in inspectors that exist to the science of an alleged chemical attack the u.s. is blaming that sad government but russia warns against jumping to conclusions. also this week military whistleblower bradley manning asks barack obama for a presidential pardon after being sentenced to thirty five years behind bars for the biggest leak of classified data in american history thus. we were faced effectively with an ultimatum from the british government that if we didn't hand back the material or destroy it they would move to law the editor of the u.k.'s guardian newspaper reveals how he was pressured to destroy files received from n.s.a. whistleblower edward snowden.