No plain error occurred when the trial court allowed a detective to give lay opinion testimony that items were purchased with a stolen credit card and it looked like someone had tried to hide them; subtotals on a store receipt indicated that the credit card was stolen; blood was present on clothing and in a car; and a broken wood panel piece matched a break at the entry site. Some testimony was proper on grounds that an officer may give lay opinion testimony based on investigative training. Other testimony was nothing more than an instantaneous conclusion reached by the detective. Finally, the Supreme Court of North Carolina has upheld lay opinion testimony identifying blood or bloodstains.