The bank provides safe custody for valuables.

这家银行提供对贵重物品的安全保管服务。

《牛津词典》

The Directors shall provide for the safe custody of theSeal which shall not be used without the authority of the Directorsor of a committee authorized by Directors.

第十六条1）董事会应安全保管印鉴，不经董事会或由董事会授权的委员会许可不得使用。

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In March 1941, a letter was sent to MI5's contact in north Wales to make arrangements to "look after the safe custody of these individuals" in the event of an invasion.

BBC: NEWS | UK | Wales | War spy secrets revealed

This is because of a vigilant, well-trained guard force, charged with the safe, humane custody of the detainees and because of that force's ability to rapidly and properly respond.

NPR: Guantanamo Detainees Attempted Mass Suicide in 2003

The appeal document also seeks to answer ICC concerns about Saif al-Islam Gadhafi's well-being, saying the government "has expended considerable resources in order to ensure the safe and secure temporary custody" of Gadhafi in Zintan and is negotiating to bring him to the capital, where facilities would be better.

CNN: Libya appeals ICC order to hand over Saif Gadhafi