Selangor police chief Hussein Omar Khan said the case has been classified under Section 294 of the Penal Code for obscene acts, Section 509 for insulting the modesty of a person, and Section 14 of the Minor Offences Act for insulting behaviour.

“The investigation will be conducted thoroughly to identify any elements of defamation or teachings that deviate from societal norms, as alleged.

“In this regard, police will summon all participants involved in the programme to record their statements under Section 112 of the Criminal Procedure Code to assist with the investigation,” Hussein said in a statement today.

The investigation had initially begun as an inquiry paper to identify any criminal offence linked to the motivational event.

Aimed at a Malay audience, the event involved about 50 female participants and was held in Shah Alam from Sept 27 to Sept 30 last year. It gained public attention after a Facebook user claimed that troubling events occurred on the final day.

According to the netizen, the session took a disturbing turn when a female speaker entered wearing a bikini, proceeded to strip naked and began dancing with members of her group.

They then allegedly encouraged participants to follow suit, removing their clothes after being given a mysterious drink.

The participants were also reportedly instructed to take part in rituals described as a “sacred bath” and “rebirth”.

Islamic development department (Jakim) director-general Sirajuddin Suhaimee said it will investigate the programme as it was linked to acts of idolatry (syirik) and immoral rituals.