The moment a 498A is filed, there is a tendency to run to the courts with a quash petition. Here are the views of the Supreme Court on quash petitions.
Read this judgment (pdf): SC: HCs Have To Be Cautious In ‘Dowry’ Cases
“Before considering the matter, the principles required to be considered a prayer for quashing the F.I.R will have to kept in mind. The Supreme Court in the case of State of Karnataka Vs. Bhajan Lal reported in AIR 1992 S.C 604 disapproved the tendency in scuttling investigation and observed as follows:“The investigation of cognizable offense is the field exclusively reserved for the police officers whose powers that field are unfettered so long as the power to investigate into cognizable offenses is legitimately exercised in strict compliance with the provisions falling under chapter XII of the code and the Courts are not justified in oliberating the track of investigation when the investigation agencies are well within the legal bounds as afore mentioned . Indeed a noticable feature of the scheme inder Chapter XIV of the code is that a Magistrate is kept in picture at all teh stages of the police investigation but he is not authorised to interfere with the actual investigation or to direct the police how the investigation is to be conducted . But if a police officer transgresses the circumscribed limits and improperly and illegally exercises his investigatory powers in breach of any statutory provision causing serous prejudices to the personal liberty and also property of a citizen , then the court on being approached by the person aggrieved for the redress of any grievence , has to consider the nature and extent of the breach and pass appropriate orders as may be called for without leaving the citizens to the mercy of the police echleons since human dignity is a dear value of consitution. It needs no emphasis that no one can demand absolute immunity even if he is wrong and claim unquestionable right and unlimited powers exercisable upto unfathomable cosmos. Any recognition of such power willbe tantamount to recognition of “Devine Power” which no authority on earth can enjoy.
In the same decision it was observed by the supreme court that where allegations in the First information report and other material any accompanying the FIR do not disclose a cognizable offense justifying an investigation by police officers under sec 156(1) of the code of, the power u/s 482 of the Cr. P.C> should not be exercised. It is observed that where in allegations made in the FIR or the complaint are so absurd and improbably on the basis of which no prudent person can ever reach a conclusion that there is sufficient ground for proceeding against the accused, then also intervention by court is also permissible.”
A quash can also occur in the event of lengthy police investigations.