For example if someone were using obtain the ransom obtain from kidnapping and somehow police found out part of the money been moved into my account. I might be thinking too much but i just plan to play safe..
Yes, you are; thinking too much into it, that is. But let's do a quick exercise. Pull out a bill from your pocket... 9 out 10 that bill has traces of drugs on it. It was probably obtained illegally at one point in its life, right? Ok, to be fair, monies used in ransom could be traced if serial numbers were captured... but wait, bank tellers put all those bills in the same drawer anyways... this can go on and on. Point is, you'll be fine. Hell, at least you have coins to sell.