Just don't ask your friendly acquaintance who is a LEO to buy and then re-sell to you - a couple Sac Sheriff deputies got in a bunch of trouble for that.
But if they no longer need or like something they bought, they may sell their handguns just like any other CA resident.
Once again, we're in CA Bill Season.
There is no value at all complaining or analyzing or reading tea leaves to decide what these bills really mean or actually do; any bill with a chance to pass will be bad for gun owners.
Let us simply oppose them all - write, call, attend meetings with legislators and tell them they're wrong.
The details only count after the Governor signs the bills.
Not a lawyer, just Some Guy On The Interwebs.