A SYDNEY court has heard how a bogus spiritual leader charged with a string of sexual assaults allegedly faked a heart attack in an attempt to avoid facing court last week on 150 sex offences.

Tony Golossian, 61, is the accused mastermind of a string of sexual assaults allegedly committed from 2001 to 2005.

Golossian, of Dulwich Hill, is accused of luring a then 23-year-old bank employee to a Summer Hill motel in early 2001 with claims he could cure a "black magic" curse placed on the woman's family.

Police statements tendered in Parramatta Local Court yesterday claim Golossian told the woman - who cannot be named - her 15-year-old sister would develop breast cancer and that her "fallopian tubes would no longer function" if the woman refused to participate in the rituals.

Police allege Golossian drugged, blindfolded and sexually assaulted the woman at four motels in Sydney and one on the Central Coast over a four-year-period.