Man accused of stabbing attack during face mask argument at Windsor shopping centre

Police allege Dylan Lewis Creswell, 25, a woman and two children were at the centre in Windsor when a security guard asked the woman to put a mask on about 8.20pm yesterday.

A short time later, Mr Creswell allegedly approached the security guard — a 59-year-old man — and punched him several times.

Police allege a member of the public — a 53-year-old man — intervened.

They allege Mr Creswell pulled out a knife and stabbed the older man in the leg.

There was a short struggle when police from Hawkesbury Area Command arrived.

Police then arrested the 25-year-old and took him to Windsor Police Station where he was charged with several offences.

The case has been adjourned until January 25 after the man did not appear at Penrith Local Court today and did not apply for bail.

The NSW Government has made face masks mandatory in shopping centres in the Greater Sydney area.

Premier Gladys Berejiklian announced the mandatory wearing of masks for a range of indoor venues in Greater Sydney in early January.

"We have been talking about it for months and months; the reason it is happening now is to make sure we give confidence to businesses and people holding down jobs," she said at the time.

Under the changes, masks must be worn while shopping, on public transport, in indoor entertainment venues such as cinemas, places of worship, hair and beauty salons.

They are also mandatory for all staff in hospitality venues and casinos, and for patrons using gaming services.

Breaches on the order can result in a $200 on-the-spot fine.