The fastest way of arresting someone is to surprise them, when they're enjoying life, not knowing what's going on around them. You cannot hide from the invisible, or from what you cannot see. The inspiration for disguises comes from fieldwork and criminal profiling. In the lion dance case, officers were aware the suspect had fled to a new area, and that lunar new year festivities, when the streets would be busy with celebrations, would provide a good opportunity for them to blend into crowds.
Eric Immesberger posed as a hit man in undercover operations to gather evidence against people attempting to hire one. He is a former agent for the Bureau of Alcohol, Tobacco, Firearms and Explosives who spent 21 years investigating violent crime, including firearms trafficking, organized criminal crews, and murder-for-hire plots. Movies and TV often portray murder for hire as a clean, professional transaction.
"Officer Travis DeSouza was charged with attempting to disseminate indecent material to minors, after allegedly communicating with an undercover officer posing as a 14-year-old girl."}],