Traces of blood were found in his marital home, revealed by the “Bluestar”.

Nancy: the charred body of a young woman found in the forest

16.07.2014 – EUROPE 1 – FRANCE

Traces of blood revealed by the “Blue-star”, a technique which allows the detection of micro-drops after cleaning.

It could be the body of a 34-year-old nurse, missing since the end of June, whose companion has been charged with voluntary manslaughter.

NEWS. The body of a young woman found burned in a forest near Nancy on Monday could be that of a 34-year-old nurse who has been missing since late June, and whose partner has been charged with voluntary manslaughter, police said Wednesday. “A police source said the body of the young woman, who disappeared during the night of 28-29 June, is believed to be that of a nurse.

The body, which was lying on a cold hearth and showed traces of charring, notably on the cranial region, was discovered by a walker on Monday morning in a forest in Villers-lès-Nancy, according to the Est Républicain. “We have already established that it was a woman. Other clues allow us to establish that a connection with the case of the disappearance is taking place,” continued the same source.

Traces of blood found at the home of the missing nurse. The young woman, a nurse and mother of a young child, had suddenly disappeared, without taking any news of her baby, whom she had entrusted to relatives for the weekend, “which is absolutely not in her habits”, said a source close to the case. Traces of blood were found at her marital home, revealed by the “Blue-star”, a technique that allows the detection of micro-drops after cleaning.

Her 36-year-old companion was charged with voluntary manslaughter and placed in pre-trial detention. He has always denied the charges against him. The investigation into the burnt body has been entrusted to the Nancy SRPJ, which could however be relinquished in favour of the Meurthe-et-Moselle departmental security service, which is in charge of the initial disappearance case.

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Traces of blood were found in his marital home, revealed by the “Bluestar”.

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The judge in the Yexeira case accepts as evidence another piece with blood on it.

To complete the process of authenticating the evidence, the magistrate noted that the other ICF staff member who received the evidence for analysis would also testify.

Judge Francisco Borelli Irizarry of the Carolina court admitted on Friday the black tarpaulin of Roberto Quiñones Rivera’s van, where the blood stains of his girlfriend Yexeira Torres Pacheco would have appeared, as evidence conditioned by the prosecution.

Borelli Irizarry explained that forensic investigator David Betancourt Quiñones of the Forensic Institute (ICF) had not identified his marks on the object and could not explain why the piece was not complete. He also did not identify any other marks contained on the tarpaulin, which he removed from the vehicle on 16 November 2011.

To complete the process of authenticating the coin, the magistrate said that the other ICF official who had received the coin for analysis still had to testify.

In the continuation of the case against Quiñones Rivera for the death and disappearance of the body of Yexeira, choreographer and dancer of the rapper Miguelito, Betancourt Quiñones explained that he examined the defendant’s white Ford Econoline bus on two occasions to identify the blood hidden in the vehicle.

She also examined a construction level occupied by the police in the bus to try to identify fingerprints.

The first assessment was carried out on 16 November at the ICF in Rio Piedras, at the request of investigating officer Lorimel Aquino Fariña.

He explained, in response to questions from prosecutor Alma Mendez Rios, that he had used the chemical “bluestar” to detect the possible presence of blood on the van.

“Bluestar is an improved formulation of luminol. You can use it over and over again and it doesn’t damage the sample,” said the witness, who testified in the afternoon.

He said that spraying the chemical on the bus “produced a bright luminescence at the back, near the front seats of the bus”. “I took the whole tarpaulin because it was very luminescent and I decided to have it analysed by the laboratory,” he said. He added that he did not want the sample to be diluted or fragmented. He then detected small spots of apparent blood on the inside of the passenger door.

These marks, he said, were on the inside frame of the door, at the back where the door locks, at the base of the rear view mirror and in the middle of the door panel. In his theory of the case on the first day of the trial, prosecutor Mendez Rios said the blood that appeared in the vehicle came from the body of a woman who was the daughter of Victor Torres Santiago and Iris Pacheco Calderon, Yexeira’s parents. He also said that analysis of the blood traces found in the bus will show that Yexeira bled to death on the passenger seat and was then dragged into the back of the van.

False number plate

In the morning, Officer Jose Dennis Rivera of the police stolen vehicle division, who removed the fake tag from the defendant’s van on November 10, 2011, testified.

In the morning, Officer Jose Dennis Rivera of the police stolen vehicle division, who removed the fake tag from the defendant’s van on November 10, 2011, testified. The witness explained that there were inconsistencies between the date on the vehicle’s driving licence and the tag that authorized the vehicle to travel on the country’s roads.

The vehicle registration, which was not stamped, indicated that the licence had expired on 31 October 2011, but the label had an effective date of December 2011. “(The licence) was not stamped like when you buy the sticker,” he said. He also noted that the colour of the label was distorted and had an irregular cut in the circle marking the month of December.

After taking the label, he went to an office of the Ministry of Transport and Public Works, where he was told that the label was fake. Jorge Gordon Menendez attempted to challenge the officer’s work by pointing out that he never asked to see the new vehicle registration and insisting that because of the ease with which the witness removed the tag, it could have been affixed to the vehicle’s window shortly before he took it.

Quiñones Rivera is currently serving a 42-month prison sentence for the false tag and the illegal appropriation of a police bullet-proof waistcoat.

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20 years of forensic bloodstain analysis in Ontario

While University of Windsor students play with spatter at a forensics conference, provincial police mark the 20th anniversary of bloodstain pattern analysis in Ontario.

 (Dax Melmer / The Windsor Star)

Windsor Star : 21.03.2014

Danielle Yardeni raises her bloody hammer after smashing it into someone’s head.

“I swing my hand back, and I do it again,” she announces, once more bringing the weapon down on a hapless imaginary victim. 

“I get blood all over the ceiling and maybe the wall.”

A fourth-year student in the University of Windsor’s forensics program
, Yardeni is demonstrating how a violent act could generate a “cast-off” bloodstain pattern — otherwise known as spatter.

It’s the first workshop session of the day at the university’s Trends in Forensic Sciences conference.

Yardeni’s rampage continues. She trades her hammer for a knife, and swishes the blade in a pan full of sheep’s blood.

“Say I stab somebody,” she explains, approaching lab partner Jeremiah Boateng.

“I stab Jeremiah. I take (the knife) out, I walk with it. It will drip as I walk.”

Yardeni demonstrates the movement and the resulting stain patterns — holding off on the stabbing motion, of course.

 (Dax Melmer / The Windsor Star)

This year is a notable anniversary for bloodstain pattern analysis (BPA) in Ontario. According to OPP, there was no training available in Canada for this particular field of forensics until provincial police decided in 1993 to launch a specialized program.

Two decades later, OPP boast that their BPA program is recognized as being on the leading edge of world research in the discipline.

OPP procedures and advancements in this regard have been published in peer-reviewed journals and emulated by outside agencies.

Provincial police currently have six dedicated bloodstain pattern analysts, all of whom are considered experts.

New OPP Commissioner Vince Hawkes previously distinguished himself as the organization’s first bloodstain pattern analyst.

Article content
Hawkes said he believes provincial investment in BPA has paid “huge dividends within the justice system and in our quest for truth.”

Among the major cases in which BPA has played a significant role is Project Octagon — the investigation of the Shedden massacre of 2006
. Eight men — all connected to the Bandidos biker gang — were found shot to death, their bodies left to rot in vehicles in a rural area near London.

BPA was also important in Project Hatfield — the prosecution of former Canadian Forces base commander Col. Russell Williams for multiple sex crimes and the murder of two women. BPA was also crucial in solving the shooting deaths of Tracy Hannah and her 14-year-old daughter Whitney in their Picton-area home in 2010.

(Crédit: Dax Melmer / The Windsor Star)

“Many times, the bloodstain evidence and testimony have established and supported a first-degree murder conviction,” wrote Staff Sgt. Gord Lefebvre, who manages OPP’s BPA program.

When blood is shed, the resulting stains can generally be classified under three categories: passive, transfer, and projected.

Passive :
Stains occur when blood falls or accumulates due to gravity. This category includes drips, trails, pools, spills, splashes and flows.

Transfer :
stains happen when one bloody surface makes contact with another surface. When there’s motion between the two surfaces, that’s a swipe pattern. When there’s a pre-existing stain and an object moves through it, that’s a wipe pattern. Footprints are also considered transfer stains.

Projected :
stains are the product of dramatic motion. When an object strikes something that’s bloody, it creates an impact pattern. When blood is released from an object due to its rapid movement, it creates a cast-off pattern.

Bloodstain pattern analysis isn’t just about staring at spots on a wall. The practice requires knowledge and skill in math and physics.

As a substance, blood retains certain physical characteristics — such as viscosity and surface tension. Combined with an understanding of directionality and angle of impact, this makes blood patterns predictable and reproducible.

The Ontario Police College’s forensic identification training
includes study of analytical geometry in three dimensions, trigonometry, the laws of motion, the properties of fluids, and work-energy theorem.

 (Dax Melmer / The Windsor Star)

Trivia for the day: In bloodstain pattern analysis, pig blood is commonly used as a substitute for human blood due to their shared physical characteristics.

 (Dax Melmer / The Windsor Star)

Blood on a glove and floor stains are revealed with the help of Bluestar in a demonstration at the University of Windsor on March 21, 2014.

Glow-in-the-dark fun

You know how in those CSI television shows, all that’s needed to make every drop of blood in a room glow blue is a flick of a special flashlight?

That’s a bit of an exaggeration, unfortunately. “They’re trying to sensationalize it,” says retired forensic identification officer Wade Knaap — formerly with Toronto police, and now a sessional instructor in the University of Windsor’s forensics program.

“It’s the ‘CSI effect.’ (These shows) have created an expectation of what can and can’t be done at a crime scene.”

Making blood luminous in real forensics work requires application of a detection reagent — a chemical that will react with latent blood.

The current industry standard is a product called Bluestar. It’s packaged in pre-formulated tablets, which investigators mix with distilled water and spray onto suspected surfaces. Based on the chemical Luminol, Bluestar will react with blood whether its fresh, old, pure or diluted. It does not alter the blood’s DNA in any way. The luminescent effect of Bluestar begins to fade about one minute after application.

Despite Knaap’s annoyance at the many myths perpetuated by television, he appreciates the public’s fascination with forensics. “It’s cool stuff,” he admits. “It’s fun. It’s using science to solve crimes.”

(Crédit: Dax Melmer / The Windsor Star)

Forensics student Danielle Yardeni demonstrates bloodstain pattern analysis. Fellow student Jeremiah Boateng looks on. Photographed March 21, 2014 at the University of Windsor.

20 years of forensic bloodstain analysis in Ontario (Audio)

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