Let me make it very clear that FIR is a public document and its copy can be demanded on payment of the prescribed fee. The accused has a right to obtain a copy of the FIR. Once the FIR is registered by the police station, its copy is sent to the Magistrate having jurisdiction and also to the Superintendent of Police office (or sub-divisional police officer). So, an accused can obtain a copy of the FIR either from the police station, or from the Magistrate court, or from the SP office (if FIR is available there). For this purpose, you can make an application and pay the prescribed fee (which is a nominal fee).
It is pertinent to mention that as per the orders of Delhi High Court, in Delhi the police is required to display copies of all FIRs on its website. If you visit the Delhi Police website https://www.delhipolice.nic.in/ you can view the FIRs online by clicking the link for the "View FIR" page (on the left menu bar of the website). Moreover, the above Delhi Police website also has a link (left menu bar of website) for downloading the format of an application for obtaining copy of the FIR. Thus, at least in Delhi, when the FIR is displayed for all members of public on the Delhi Police website, there is no question that the accused cannot get a copy of the FIR.
In fact, in other places also, it is the right of the accused to obtain copy of the FIR so that he can protect his interests. FIR has been held to be public document the copy of which can be obtained on payment of prescribed fee, and it is not a privileged document that can be withheld from the accused.
Your second question is with regard to questioning of the accused by police. In this regard, please note that recently, with effect from 01.11.2010, a new Section 41-D has come into operation in the Criminal Procedure Code (Cr.P.C.), which lays down as under:
"41-D. Right of arrested person to meet an advocate of his choice during interrogation.— When any person is arrested and interrogated by the police, he shall be entitled to meet an advocate of his choice during interrogation, though not throughout interrogation."
So, one can make use of this new provision after arrest. In addition, I may add that the accused can definitely consult an advocate BEFORE he goes to the police for questioning (when called by police). However, DURING the actual questioning by the police, the right may be subject to the above new provision and there may be some restraints.