A Perth dentist accused of sexually assaulting women after spiking their drinks has been hit with fresh charges after another two alleged victims came forward.
Police allege Farzam Mehrabi, of Shelley, met the two women on an online dating site between January and March.
"It will be alleged whilst the man was on a date with the women at either a licensed premises or his home, he put a substance in their drinks, causing them to become incapacitated before sexually assaulting them," a police spokesperson said.
The 32-year-old, who faced court earlier this year on similar charges, is now facing a total of 37 charges relating to 10 victims.
The latest charges include six counts of alleged penetration without consent, two counts of alleged stupefying to commit an indictable offence and two counts of allegedly impeding another person's normal breathing.
The investigation is ongoing and detectives have appealed to anyone with relevant information to contact Crime Stoppers on 1800 333 000.
Police are urging anyone who suspects they may have had their drink spiked to present a sample to a police station for testing.
New urine testing kits are provided at all 24-hour metropolitan stations, and regional stations.
Mr Mehrabi is due to appear in Perth Magistrates Court on November 14.
