So it only checks that the documents are complete and thats it without going into details of the pcc,employment letters,etc
Yes, the details are verified at the next stage IP2 which is for eligibility, security and criminality.
Below points shed light on it-
Now the next stage is to determine eligibility, i.e. whether the application meets the program prerequisites under which it is filed. For FSW, your experience, letters of reference, education, etc are in order. For the PNP, FSW and your nomination is present, for CEC, your Canadian experience is on file. And, so on so forth for the other categories. The objective here is to review whether you meet the program threshold and what you claim is correct. If there is any suspicion, or things don't sound good, the agent can send your application for further review. Which includes an interview, extra doc request etc. If the applicant meets the requirements, and his score is over the cut off for the ITA she received, his eligibility is passed. If there are issues, they will be addressed. This usually happens at the LVO. This stage happens when the application is usually 4-5 months into the process. At this stage, if the eligibility is met, the chances of refusal considerably go down, unless there is a criminal history. However, if your score goes down due to CIC not acknowledging your experience, NOC and reference letters not matching, or a change in age, the application is rejected.
9. As soon as the eligibility is met, next comes the security and criminality (or background check). Usually the criminality is met through the Police Clearance Certificates (PCC) uploaded with the application. If the applicant has been to a country which is suspicious, or your travel history does show frequent visits to a country without any explanation, the same are recorded and evaluated. If things look good, your criminality is passed. A lot of applicants receive a request for Schedule A at this stage to ensure no gap time is present and the history is clear.
10. The last and the final stage is the security. This is a serious & time-consuming stage, involving many agencies, including Canadian Security Intelligence Service (CSIS), International Police (INTERPOL), Criminal Database Checking & touch-base with Local Police. Many things are considered here. Number of countries visited, Applicant coming from 'certain' countries, past law enforcement or military record, Prolonged stay in a country w/out sufficient docs to prove cause, frequent traveling to certain nations, your *Name (?), Inter-Religion/Nationality Marriages etc. If everything is simple & straight, the file soon gets into the 'final review' stage. If there are any 'red flags', the case goes into a 'spin'. Then the file might go to the local Police/intelligence agencies; the outcome/timeframe of which is beyond the control of CIC. And thereby the timeframe can be anything [sometimes beyond 1yr]. But, usually this stage should be over within 1-2 months. However, a point to be noted is that the applicant can also be called for an Interview [at this stage], due to this reason. For some people the security has a quick turn around. But in the last two weeks a lot of applicants are stuck at this stage.
P.S- credit legalfalcon.