PRETORIA, South Africa -- Oscar Pistorius lawyers tried to roll back the prosecutions momentum at his murder trial Wednesday following the star athletes shaky testimony, presenting a forensic expert who quickly found his own credentials and findings sharply questioned. With Pistorius now back watching the proceedings from a wooden bench, the double-amputee Olympians defence team was attempting to bolster his account that he shot girlfriend Reeva Steenkamp by mistake through a toilet door in his home, thinking she was a dangerous intruder about to attack him in the night. Pistorius faces 25 years to life in prison if convicted of premeditated murder in Steenkamps death in the early hours of Valentines Day last year. But former police officer Roger Dixon, testifying for the defence, also appeared unsteady as chief prosecutor Gerrie Nel warned him that it was irresponsible to "try and be an expert" in areas he was not. Nel asserted in his cross-examination that Dixon was not an expert in light, sound, ballistics, gunshot wounds or pathology -- all areas about which he was testifying. Dixon worked at the police forensic laboratory in Pretoria until he left the force in December 2012. He was a specialist in analyzing materials at crime scenes. He now works in the geology department at the University of Pretoria. Nel also accused him of not answering questions directly. "For an expert you are evasive," Nel said, prompting the judge at one point to tell the energetic prosecutor to "restrain" himself. Earlier, the judge ruled that proceedings will adjourn for more than two weeks after Thursday because a member of the prosecution team has another case to attend to. The trial will resume on May 5. During the cross-examination, Nel showed that Dixons findings regarding Steenkamps gunshot wounds came from analysis of autopsy photos and from a pathologists report because he was not present at the autopsy. He also hadnt read parts of the pathology report, Nel charged. The prosecutor also criticized Dixon for not bringing photographs and his written reports with him and abruptly told him to bring them on Thursday. "I said I will," Dixon snapped back. "Good," Nel responded. Nel ridiculed Dixons finding about the sequence of the shots that Pistorius fired at Steenkamp through the door, testimony which contradicted that of a police ballistics expert and state pathologist Prof. Gert Saayman. "I use the word finding very loosely," Nel said wryly of Dixons theory. Questioned by defence lawyer Barry Roux, Dixon said he believed Steenkamp was hit in the hip and the arm in quick succession by the first two of four shots while she was standing close to the toilet door. Raising his right arm in the courtroom, Dixon indicated he believed Steenkamp may have had her right arm extended and maybe her hand on the door handle, as if she was about to open the door through which she was shot. The defence was using his testimony to try to cast doubt on the prosecutions account that Steenkamp fled to the toilet and was hiding there during a fight with Pistorius. Nel has said that the runner intentionally shot Steenkamp through the door as she faced him and while they were arguing. Nel mocked what he said was a suggestion by Dixon that Steenkamp was knocked backward by one of the bullets. "Its something you see on TV," Nel said dismissively, challenging the expert to find scientific literature that showed it was possible. Nel also pounced on Dixons concession that an audio test that the defence conducted to compare the sounds of gunshots to those of a cricket bat hitting a wood door -- which both happened on the night of the killing -- had to be done a second time because of problems with the first. He even asked him if he was an expert at swinging a cricket bat, a cutting reference to his hitting a bat on a wood door in the defences audio tests at a gun range. Dixon had also said he took part in the audio tests that showed the sounds of gunshots and of a cricket bat hitting a wood door were similar and could be confused. That is important because several neighbours have testified that they heard Steenkamp scream before shots on the fatal night, backing the prosecutions case that there was a fight before Pistorius shot his girlfriend with his 9 mm pistol. Pistorius defence says the witnesses are mistaking the sequence and they heard Pistorius screaming in a high-pitched voice for help before breaking the toilet door open with his bat to get to Steenkamp. When played by Pistorius lawyers in courts, the two noises were similar. But questioned by Nel, Dixon said the tests had to be repeated and that they were recorded and edited by a music producer who had no experience in recording gunshots. "I have no idea on the expertise of the person who recorded the sounds," Dixon said. Jorge Bonifacio Jersey . 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Fake Royals Jerseys .com) - The Miami Heat will try to close out the Charlotte Bobcats Monday night in Game 4 of their Eastern Conference first round series. KUALA LUMPUR, Malaysia -- President Barack Obama said Sunday that comments reportedly made by the owner of a U.S. pro basketball team are "incredibly offensive racist statements," before casting them as part of a continuing legacy of slavery and segregation that Americans must confront. "When ignorant folks want to advertise their ignorance, you dont really have to do anything, you just let them talk," Obama said when asked to respond to the reported comments from Los Angeles Clippers owner Donald Sterling. Obamas description of the controversy as part of a larger historical context is the latest example of his continuing willingness to expound on matters of race in his second term. After avoiding much mention of race relations during his campaign to become the first black president and in his first term, the president last summer offered a personal reflection in response to the shooting of black teenager Trayvon Martin. And now Obama has spoken out against an audio recording of a man identified as Sterling telling his girlfriend not to bring black people to games. The firestorm over Sterlings comments has quickly engulfed the National Basketball Association. Obama cast the comments through a broader prism of racism in America, adding that "we constantly have to be on guard on racial attitudes that divide us rather than embracing our diversity as a strength." "The United States continues to wrestle with the legacy of race and slavery and segregattion, thats still there, the vestiges of discrimination," Obama said during a news conference in Malaysia, where he was travelling.dddddddddddd "Weve made enormous strides, but youre going to continue to see this percolate up every so often," he added. "And I think that we just have to be clear and steady in denouncing it, teaching our children differently, but also remaining hopeful that part of why statements like this stand out some much is because there has been this shift in how we view ourselves." In the recording attributed to Sterling recording and posted on the website TMZ, a male voice questions his girlfriends association with minorities. TMZ reported the woman, V. Stiviano, is of black and Mexican descent. The man asks Stiviano not to broadcast her association with black people or bring black people to games. The man specifically mentions Lakers Hall of Famer Magic Johnson on the recording, saying, "Dont bring him to my games, OK?" Obama said hes confident NBA Commissioner Adam Silver will address the matter. He said the NBA has "an awful lot of African American players, its steeped in African American culture. And I suspect that the NBA is going to be deeply concerned in resolving this." Silver had said the NBA needs to confirm authenticity of the audio tape and interview both Sterling and the woman in the recording. He called the tape "disturbing and offensive" and promised to investigate quickly. ' ' '