What is the best clause(terms) to be put for money-collector employee in their employment contract? Few months ago my boss lodged a police report regarding money-breach & the police cant charge the guy as the company do not sets any agreement with the employee.

Is this sufficient to be include in the employment contract:
"In the event that you have collected the client's fees and not submitted to office, legal action will be taken against you and this matter will be bring to court for Criminal Breach of Trust."

Im hoping for expertlaw suggestion to make this clause stronger. Thanks