Quite honestly, you're seeing the difference between reasonable doubt, needed to secure a conviction, and probable cause, in this case the bullshit justification of the police to seize the assets because there is some likelihood of an offense occurring.

The onus is not on the police to prove a crime has been committed and the "innocent until proven guilty" system has flipped to where the accused now needs to move heaven and earth to verify he is innocent.

In all likelihood this is just a cash-grab by the cops and I would be suspicious whether all of the funds were entered as evidence or if some of it has "accidentally" been lost in transit.