I can see from the outside how his must look "dodgy".
You are on income support, but you managed to get a loan, then gave the money to someone else, and they pay the loan off. One asks why THEY did not get the loan in the first place.
Also you say you "own" a house (your name is on a property, on the deeds and mortgage, yet you say you have no claim on it). This also could look very dubious from the outside.
I am not saying you have knowingly done anything wrong, but you have either been very naive in letting yourself be "used" by others, or you knew what you were doing but hoped nobody would find out.
For example by owning a house (as you do) you may not have been entitled to some of your benefits, and the police may think you hid the fact you owned as house to get more benefits.
Nowadays the banks and police are also very hot on things like money laundering and they may wonder if you have been used by others to launder money (or defaud banks in some way).
If you can explain it all away you may be OK, if not you may be in trouble (hard to say without all the info).
All I can say is you better have some good answers for the police as to WHY you did some of these things.