Act, has an instrument prohibited by that Act in his possession for the capture of any fish, where the capture would constitute an offence under that Act; then a water bailiff or a person appointed by the Secretary of State, with any assistants, may "seize" him (in modern-day parlance, "arrest") without warrant and put him as soon as may be into the custody of a police officer. Power to require production of fishing licences A water bailiff or other officer of the agency, or any constable, may require any person who is fishing, or whom he reasonably suspects of being about to fish or to have within the preceding half-hour fished in any area, to produce his licence or other authority to fish and to state his name and address. A water bailiff or other officer of the Agency who on any occasion finds a person who he has reason to believe is committing, or has on that occasion committed, a fixed penalty offence (see below), may require that person to state his name and address. A person holding a fishing licence for any area may, on production of his licence, require any person who is fishing in that area to produce his licence or other authority to fish and to state his name and address. If any person required to produce his fishing licence or other authority or to state his name and address fails to do so, he shall be guilty of an offence; but if within seven days after the production of his licence was so required he produces the licence or other authority at the appropriate office of the Agency he shall not be convicted of an offence under this section for failing to produce it. "The appropriate office of the Agency" means: in a case where the person requiring the production of the licence or other authority specifies a particular office of the Agency for its production, that office; and in any other case, any office of the Agency; and for the purposes of that subsection where a licence or other authority which any person has been required to produce is sent by post to an office of the Agency that licence or other authority shall be treated as produced by that person at that office. Fixed penalty notices Where on any occasion a water bailiff or other officer of the Environment Agency finds a