Presenting numbers in surd form is quite common in science and engineering especially where a calculator is either not allowed or unavailable, and the calculations to be undertaken involve irrational values. Every student planning to study math’s at the senior level in such a calculus-based or statistics course should be able to manipulate and deal with surds. The purpose of Peter Chew’s Theorem for Quadratic Surd is to provide a simple method compare current methods to aid in mathematics teaching and learning, especially if similar COVID-19 problems arise in the future. Therefore, Applying Peter Chew’s Theorem to Criminology problem can make calculation of Criminology problem simple and easier, especially when similar covid-19 issues arise in the future. The purpose of Peter Chew’s Theorem for Quadratic Surd is the same as Albert Einstein’s famous quote Everything should be made as simple as possible, but not simpler.