I think it's (at least) a two-step process.

1.  Police must handle each complainant - as they come forward - with empathy, courtesy, and skill.  That's not always done now.

But...

2. Before a charge is filed, police must investigate and test the complainant's story thoroughly.  That can be a rough experience for the complainant, but is a kindness in the end.  The sad alternative is what happened in the Ghomeshi trial.