Money Extortion

Hi, Can an employee file a case against the employer claiming his partnership without any written records of partnership and just on the basis of personal grudge to extort money from the employer once the employee is terminated? Also, do the police have authority to question the employer without any evidence against him and just on the grounds of political pressure? Can the police force the employer to not get a lawyer in his defence? Can police threaten the employer citing false statements. Please guide me regarding the same. And also please suggest if police can investigate only in the favour of the person holding political contacts and help the person extort money? How can this false allegation be dealt if it is taking toll on mental health, physical health, and social reputation as the police is very conveniently favouring the fellow with political contacts and the investigation is being headed only in one direction In favour of employee as per the political pressure. Please guide. Thank you!