"7. ... The purpose of departmental enquiry and of prosecution are two different and distinct aspects. The criminal prosecution is launched for an offence for violation of a duty, the offender owes to the society or for breach of which law has provided that the offender shall make satisfaction to the public. So crime is an act of commission in violation of law or of omission of public duty. The departmental enquiry is to maintain discipline in the service and efficiency of public service. It would, therefore, be expedient that the disciplinary proceedings are conducted and completed as expeditiously as possible. It is not, therefore, desirable to lay down any guidelines as inflexible rules in which the departmental proceedings may or may not be stayed pending trial in criminal case against the delinquent officer. Each case requires to be considered in the backdrop of its own facts and circumstances. There would be no bar to proceed simultaneously with departmental enquiry and trial of a criminal case unless the charge in the criminal trial is of grave nature involving complicated questions of fact and law. Offence generally implies infringement of public (sic duty), as distinguished from mere private rights punishable under criminal law. When trial for criminal offence is conducted it should be in accordance with proof of the offence as per the evidence defined under the provisions of the Evidence Act. Converse is the case of departmental enquiry. The enquiry in a