The law would have to build its own case against him.

You sound like you're trying to build a case against him.

He may also have wanted more time to build a case.

There had been so little upon which to build a case.

The state would have to use medical experts among others to build its case.

He was the agent building a case against her father.

Then it might be used to build a case against him for trial.

For a while, as state investigators built a case, she stopped.

Or was he simply building a case for his ignorance?

The police do not yet have enough evidence to build cases against the other key suspects.