I found these sections in the CA state health and safety code. It's a bit convoluted, but the gist of it is, probably not legally.
7100. (a) The right to control the disposition of the remains of a
deceased person, the location and conditions of interment, and
arrangements for funeral goods and services to be provided, . . . ,
vests in, and the duty of disposition and the liability for
the reasonable cost of disposition of the remains devolves upon, the
following in the order named:
(1) An agent under a power of attorney.
(2) The competent surviving spouse.
(3) The sole surviving competent adult child of the decedent.
(4) The surviving competent parent or parents of the decedent.
etc.
(b) (1) If any person to whom the right of control has vested
pursuant to subdivision (a) has been charged with first or second
degree murder or voluntary manslaughter in connection with the
decedent's death and those charges are known to the funeral director
or cemetery authority, the right of control is relinquished and
passed on to the next of kin in accordance with subdivision (a).
(2) If the charges against the person are dropped, or if the
person is acquitted of the charges, the right of control is returned
to the person.
7055. Every person, who for himself or herself or for another
person, inters or incinerates a body or permits the same to be done,
or removes any remains, other than cremated remains, from the primary
registration district in which the death or incineration occurred or
the body was found, except a removal by a funeral director in a
funeral director's conveyance or an officer of a duly accredited
medical college engaged in official duties with respect to the body
of a decedent who has willfully donated his or her body to the
medical college from that registration district or county to another
registration district or county, or within the same registration
district or county, without the authority of a burial or removal
permit issued by the local registrar of the district in which the
death occurred or in which the body was found; or removes interred
human remains from the cemetery in which the interment occurred, or
removes cremated remains from the premises on which the cremation
occurred without the authority of a removal permit is guilty of a
misdemeanor and punishable as follows:
(a) For the first offense, by a fine of not less than ten dollars
($10) nor more than five hundred dollars ($500).
(b) For each subsequent offense, by a fine of not less than fifty
dollars ($50) nor more than five hundred dollars ($500) or
imprisonment in the county jail for not more than 60 days, or by
both.
check out
http://caselaw.lp.findlaw.com/cacodes/hsc/7050.5-7055.html