Monika Matracka (34), with an address at The Pines, Briarfield, Castletroy, Limerick appeared before a special sitting of Limerick District Court yesterday.
She was charged with murdering Mr Rejmer (38), on a date between December 30 and 31 last year.
According to the State’s charge sheet, it is alleged Ms Matracka attacked Mr Rejmer with a knife at the house they shared with a third man.
Detective Sergeant Arthur Ryan gave evidence that he arrested Ms Matracka at 11.27am yesterday morning at Henry Street Garda station where he formally charged her with Mr Rejmer’s murder.
“She did not make any reply after caution,” Det Sgt Ryan added.
In court, Ms Matracka was remanded in custody to Limerick Prison to appear in court again tomorrow. She was granted free legal aid.