Check the sentence please!

0Hello.02br
02br
00How about this?02br
01b01i00The police investigated the case but they were unable to find out the cause, and some even accused the police for being too lenient to the real criminals (who were) handed over to CID.02i02b0-

0case was handed over to the police, I rephrase my original sentence as follow:02br
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00The police were investigating the case as they were unable to get to root of the cause and some even accused the police for showing the leniency toward the real criminals, hence the case was handed over to CID.0-

0It's too much for one sentence.02br
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00The police were investigating the case but they were unable to get to the root cause [NOT root of the cause]... --- Now, I don't know what this means. Police don't look for "causes" - they look for clues, evidence, suspects, etc. Do you mean "motive"? They were unable to discover the suspects' motives?02br
02br
00

0Hello.02br
02br
00How about this?02br
01b01i01font00The police investigated the case but they were unable to find out why it happened. Some even accused the police for being too lenient to the real criminals, who ended up being handed over to CID.02font02i02b0-

0..accused the police OF being too lenient.02br
02br
00I believe it was the case, and not the criminals, that was turned over to CID.0-

0 Hi,02br
00The police investigated the case, but were unable to get to the root cause (or, simply, couldn't solve it). Some people even accused them of operating in collusion with the real culprits (sounds better I think). Consequently, the case was handed over to the CBI. 02br
00Regards, Ashish 0-

0You have made it too strong. Originally it was that the police were perhaps ignoring evidence. That is a big difference from actively working with the real criminals.0-

0Grammar Geek,02br
00Thank you for the reply.02br
02br
00How about this?02br
02br
01b01font01i00An investigation by the police didn't reveal why the case occurred, and some even accused them of being too lenient to the real criminals. In the end, the case was turned over to the CID.02i02font

0Thanks once again, Grammar Geek! You're right. I guess I was being too harsh on Indian Police (I could tell from the context that it is Indian Police that we are talking about)! Thanks for your comment!02br
00Regards, Ashish 0-

0 Thanks Ashish and Grammar Geek, specially for pointing out the words which were wrongly used it will help me to improve upon my grammar 0-