策划 + Event
The word 策划 (cèhuà) means "to plan," "to plot," or "to mastermind." It can carry a neutral meaning of organizing an event or a negative connotation of scheming. In news and legal contexts, it often describes the planning of criminal acts or conspiracies.
这次活动是谁策划的?做得真不错。
Zhè cì huódòng shì shuí cèhuà de? Zuò de zhēn búcuò.
Who planned this event? They did a really great job.
警方发现这起案件是有人精心策划的。
Jǐngfāng fāxiàn zhè qǐ ànjiàn shì yǒu rén jīngxīn cèhuà de.
The police discovered that this case was carefully planned by someone.