BERNE, Sept 23 (Reuter) - A high-level delegation from China, whose human rights record has often been criticised in the West, will visit Switzerland this week to study the protection of human rights, the Swiss said on Monday.

The trip by six senior Chinese Justice Ministry officials is part of a standing dialogue on human rights that the two countries have conducted since 1991.

"This open, critical and constructive dialogue primarily concerns protecting people in custody, the rights of especially vulnerable groups (women, children, minorities) and freedom of religion," the Swiss foreign ministry said in a statement.

It said contents of the talks would remain confidential "in order to achieve substantial talks."

China's human rights record has often come under fire from Western governments who accuse the communist government of systematic abuses. China had called such criticism interference in its domestic affairs.

Two Swiss delegations have visited China and Tibet under an exchange programme that started in 1991. Another trip is planned for next year. One Chinese group has already toured Switzerland.

This week's visit will feature talks with Swiss foreign affairs and justice officials and the delegation will visit Swiss jails and courts.

The Chinese visitors will pay special attention to the rights of defendants, aid to victims of crime and the role of non-governmental agencies in safeguarding human rights.