Since Britain already has opt-outs (and opt-ins) from justice and home affairs (JHA), this should be achievable.

因为英国已经部分退出（和有选择地加入）司法与内政协定，所以这方面能够做到。

youdao

As a legal personality the EU is able to conclude treaties with countries and enacts legislation in justice and home affairs.

作为法人，欧盟能够与其他国家缔结条约、制定司法及内政法律。

youdao

There is a precedent for this: during her time in the Home Office, Mrs May pushed for the UK to opt out of 130 EU Justice and Home Affairs measures.

她这套策略是有先例的：在英国内政部任职期间，梅推动英国选择退出欧盟司法和内政事务(EU Justice and Home Affairs) 130项措施。

youdao

The Maastricht treaty restricted the commission's role in foreign policy and in justice and home affairs.

ECONOMIST: Santer��s missing teeth

EU's main decision-making body, was refusing its requests for documents relating to justice and home affairs.

ECONOMIST: Jacob Soderman, wrist-tapper general | The

Since Britain already has opt-outs (and opt-ins) from justice and home affairs (JHA), this should be achievable.

ECONOMIST: Referenda, ratchets and opt-outs