Businesses in Sussex have been warned about potential legal pitfalls when organising staff Christmas parties.

Sussex Enterprise says although Christmas parties at work are traditionally a time for employers to thank staff for their hard work, many firms are unaware they are responsible for their employees' welfare just the same as during working hours.

Employees are still subject to the same staff-related policies, including disciplinary procedures.

Mary Carter-Lee, human resources consultant with the Burgess Hill-based organisation, said: "While we don't want to sound like killjoys, we need to draw attention to the fact incidents which occur at staff Christmas parties can lead to long-term legal headaches for businesses.

"Staff should be aware that their behaviour at company social events could lead to disciplinary action.

"Employers need to be careful not to encourage acts of misconduct. This could be by providing a free bar or organising dubious entertainment."

It is up to businesses to make it clear what is and is not acceptable behaviour at a party.

An email or an paragraph in the instructions for attending the party should advise staff that it is a work- related event and any instance of misconduct would be treated through normal company procedures.

In the event of any misconduct, a full investigation should be carried out before any disciplinary action is taken.

Businesses also need to ensure complaints of sexual harassment are dealt with seriously and, if possible, by a manager of the same sex as the complainant.

Mrs Carter-Lee, a consultant for People Make Business, a service set up by Sussex Enterprise to help small and medium-sized businesses deal with personnel issues, said: "Although there are serious issues surrounding Christmas parties, social events organised by a company are perceived as a key benefit by most employees.

"They can provide the opportunity of having fun outside the office, which in turn can have a positive impact on the working environment. Our advice is to have fun but keep in control."