Which term describes when a riot transforms into looting?

The term that accurately describes the transformation of a riot into looting is "acquisitive." This term refers to behavior driven by the desire to acquire goods, particularly under chaotic or disruptive circumstances like a riot. During such events, the disorder can create an environment where individuals seize the opportunity to take items unlawfully.

In contrast, the other terms depict different motives or aspects of riots. "Escape" typically relates to the need to flee from a situation rather than take advantage of it. "Aggressive" suggests a focus on violence or confrontation without necessarily implying theft. "Expressive" refers to actions driven by the need to communicate feelings or frustrations, rather than acquiring possessions. Therefore, the context of a riot morphing into looting aligns most clearly with the notion of acquisitive behavior.