〜にかかわる

Meaning

Indicates that something directly relates to and affects a grave matter. 「かかわる」 is written 「関わる」. Used to emphasize seriousness, as in 「命に関わる」 (a matter of life and death) or 「名誉に関わる」 (a matter of honor).

Examples

これは会社の存続にかかわる重大な問題だ。 This is a serious issue that affects the very survival of the company.
彼の不注意が、人の命に関わる事故を招いた。 His carelessness caused an accident involving human lives.