1981 was the last year that all pennies were made with 95% copper content. In 1982, the 99.2% zinc, copper plated pennies were introduced; but pennies with 95% copper were also made that year. Most pennies made in 1983 were zinc, but there were an unknown quantity of copper pennies also made in 1983 for an unknown reason, and if you find one, they're worth a small fortune. They are identifiable by the difference in weight between copper and zinc varieties, which is typically .6 or .7 grams. Copper pennies = 3.11g, zinc pennies = 2.4/2.5g

Tulsa PD finishes by saying, "For clarification, the arrestee had passed through the metal detector area to the most secure area of the event accessible only to ticket holders.''

https://www.tmz.com/2020/06/20/tulsa-woman-arrested-for-trespassing-donald-trump-rally-oklahoma/