Sandwich launched by protester reportedly exploded and created mustard stain on customs official, trial told

A federal customs official has stated under oath he could sense through his body armor the collision of a deli item hurled at him by a Washington DC protester, who has stood before a judge for assault.

Immigration and customs agent the officer told the legal jury the sandwich "shattered all over him" and he "could smell the onions and yellow sauce" on his uniform.

Both legal teams contests that the accused, in his thirties, did in fact hurl vulgar language and a prepared food item at authorities assigned by President Donald Trump to secure the Washington DC in the summer month.

The occurrence was filmed on camera and became popular online, making the defendant a representation of dissent in the capital to Trump.

Federal attorneys initially tried to achieve felony charges against the defendant, but a grand jury declined to prosecute him.

The former president's deployment of armed forces to the federal district this season sparked protest from some of the DC citizens, who saw it as a politicisation of the troops.

Per court papers, the defendant walked up to a group of officers at about 23:00 on the summer date, referring to them "authoritarians" and yelling: "Why are you present? I don't want you in my city!"

The court witnessed a demonstration from the officer on the trial day as he testified against the accused.

"I detected it through my ballistic vest," he said of the food's collision, mentioning that an aromatic fragment dangled from his police radio and condiment stained his uniform.

Mr Dunn's lawyer, Julia Gatto, stated in her opening statement that launching the sandwich was a "harmless gesture that did not, could not, result in harm".

But state lawyer John Parron maintained the accused must be considered responsible.

"Whatever your status, you can't just go around hurling objects at others because you're mad," the attorney said.

After the alleged assault was revealed, Mr Dunn was fired from his job as a law firm employee in the government law department.