Venues across Fakenham are on alert amid a rise in drink spiking across the UK.
Pubs and bars in the market town have been "extra vigilant" in recent weeks to try and spot potential incidents, their owners say.
Drink-Spiking-in-Norwich-Norfolk-Police-Reaction-ffffffff9d9678df
While they have not come across any cases, attention has shifted towards anticipating and preventing predatory behaviour.
Alie Hannam, who owns The Crown in Market Place, said the safety of her customers was paramount.
"We have door supervisors on every Friday and Saturday night, and most of our customers are regulars that we know," she added.
"The ones we don’t know we keep an eye on, and we patrol the pub inside and out.
"By having door supervisors we have that extra presence. We don’t let anyone through the archway if they are drunk or high on drugs.
"We keep our pub safe, we are always vigilant, and we always look after our customers. If a drink is left unattended on the table, we throw it away."
Across the road at The Red Lion Lounge, general manager Joanna Pizer-Inggs makes sure there is a controlled number of people in the venue so staff can keep an eye on everyone.
She said: “Our service is intimate so we are communicating with customers all the time.
"We keep eyes on the client so we only allow 'X' amount of people through the door, and we also have a camera on the bar. The mixologist keeps an eye on the area and we have a manager on the floor at all times.
“Being extra vigilant is the norm that comes with years of experience of looking after the welfare of our customers."
Catherine Baker, owner of The Rampant Horse Inn, on Queen's Road, said the pub had always been conscious of spiking as a potential issue.
She added: "People do ask me or a member of staff to watch their drink. It is something we have always been conscious of.
“It is just something over the years we have learnt to watch out for, keeping an eye on people in the pub.
“Unfortunately, you can never say it is never going to happen and it is something to be concerned about.”
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here