Prosecutors Ask Judge to Revoke Chris Brown's Probation A Los Angeles prosecutor told a judge on Tuesday there is no credible evidence that the singer Chris Brown completed the community service he was ordered to do as part of his sentence for assaulting Rihanna four years ago, The Associated Press reported. In court papers, the Los Angeles District Attorney's office requested that Mr. Brown's probation be revoked and that he be ordered to repeat six months of manual labor in Los Angeles to comply with his sentence. The motion also cited several violent outbursts by Mr. Brown that have not led to arrests or charges to support the motion to revoke his probation. Among those incidents was a fight last month between Mr. Brown and Frank Ocean over a parking space. An investigator's report included in the motion said Mr. Ocean had told the police that Mr. Brown had threatened to shoot him during the fistfight. The court motion said records submitted by the police in Richmond, Va., where Mr. Brown claimed to have completed his sentence, were full of discrepancies and showed the singer had been unsupervised for most of the time. The motion raised questions about Mr. Brown's claim that he worked overnight cleaning and waxing floors at a daycare center where his mother once served as director. Prosecutors said a professional floor cleaner had told investigators he cleaned the floors during the months when Mr. Brown worked there. "This inquiry provided no credible, competent or verifiable evidence that defendant Brown performed his community labor as presented to this court," Deputy District Attorney Mary Murray wrote. He added the records submitted by the Richmond police were "at best sloppy documentation and at worst fraudulent reporting." Mr. Brown is expected to appear in court on Wednesday for a probation hearing. He was sentenced to five years probation and ordered to perform six months of community service after he pleaded guilty in 2009 to assaulting Rihanna in a car after a party the night before Grammy Awards. The judge allowed him to do the community service in his home state of Virginia. Rihanna recently told Rolling Stone that she has forgiven Mr. Brown and has resumed seeing him romantically. Both singers are nominated for Grammy Awards and are expected to attend a televised ceremony in Los Angeles on Sunday.