Trace forensic expert William Schneck of Spokane, Wash., said the yellow paint found on Walter Scott’s cellphone and Michael Slager’s Taser was likely from the yellow road where the shooting occurred. Both items were likely damaged at the same time.

Dr. Thomas Owens, a medical examiner from Charlotte hired by the defense, testified that scrapes, bruises and cuts on Scott’s hands, arms and head were consistent with Scott having been in a struggle.

Owens also addressed toxicology reports showing cocaine and the byproduct of cocaine and alcohol in Scott’s body. Cocaine’s presence indicates recent use, he said.

A judge would not allow Owens’ testimony on “excited delirium” in which drug users can be thrust into aggressive “fight or flight” behavior. The defense sought to offer it as an alternative to the prosecution’s theory about why Scott ran.

Sgt. Ronald Webb, the supervisor of Slager’s patrol squad, was more hesitant to answer defense questions than he had been in a pretrial hearing, often saying he “wasn’t working that day.” Webb eventually went to the scene and talked with Slager, but he wasn’t allowed to testify about what the officer said. Prosecutors successfully argued that it was hearsay. The judge added that there was not enough information to corroborate the trustworthiness of Webb’s testimony. Defense lawyer Andy Savage, meanwhile, said it should be allowed because similar testimony about officers’ accounts was permitted and, “This is a search for the truth.”

North Charleston Police Chief Eddie Driggers testified that Slager was not known to have ever violated department policies before the shooting and appeared to have followed the rules during the confrontation with Scott before the gunfire. He said Slager’s 14 past Taser uses, though, “sounds high to me.”