You can decide the case on its merits.
Take the matter on its merits
Mr Berlusconi decided that, instead of fighting for his legislation on its merits, he would try to deter voters from participating.
In any events, the program put forward by Brezhnev was unacceptable to us on its merits.
The new Ridley Scott film Robin Hood, which has opened to mixed reviews on its merits as entertainment, is also drawing some critics' political ire.
take the matter on its merits; be pragmatic
He will judge the case solely on its merits.