The True Word Curse was one of the few spells that Lin Feng, at his Energy Cultivation First Level, could use. It was rather useless though, as it did not aid in cultivation, nor could it be used against enemies, and it could only make ordinary people without cultivation levels speak the truth. The spell was ineffective against Cultivators.
The principle of the True Word Curse was quite simple, as when a person lies, their brain waves exhibit a unique pattern of thought process, which is what lie detectors capitalize on.
The True Word Curse utilized Primordial Energy to inhibit a person's ability to lie, ensuring that those affected by the curse spoke only the truth.
The reason why Lin Feng wasn't afraid of Zhou Shuijin calling the police was because he had this trick up his sleeve. He went straight over, cast the True Word Curse on Huang Can, and then pushed him in front of the two policemen.
