Booby, can't think why.
I'm just a concerned parent like the rest of the people writing here. I'm also an s/lt so know something of the inner machinations and professional obligations of the industry.
I would have no problem at all with a parent asking me for a full baseline assessment. SAs I said, put your request in writing and cc it to line manager. To find out who the line manager is, ring the relevant dept. and ask the admin staff.
How will you measure progress if you don't know exactly where he is now?
[[http://www.ipsea.org.uk/apps/content/html/?fid=50 This IPSEA link is clear and jargon free and summarises important judgements where parents have challeneged Kafkaesque machinations of statutory bodies. Important ones for you are that s/lt is an EDUCATIONAL need. Do NOT let them put it in the 'Non educational' section of the statement (as 95% will try to do)
Insist that all input is QUANTIFIED and SPECIFIED.
'Monitoring' 'advising' 'supporting' mean nothing. In the case of efficient service provision and delivery, these might suffice but assume the service isn't efficient (and that way you won't be disappointed).
Keep a record of every phone call. Correspond as much as possible through letters, and cc to other people and keep copies.
Attend every meeting looking smart and organised. Keep notes (with a nice pen and a good notebook) and attend if possible with another person at all times.
You have a right to see your child's files at any time too. S/lt will have one, as will the ed psych.
Be calm, courteous and communicate clearly at all times and co-operate with them fully (eg if they ask you to work on something at hom with your child, do so and show them proof you have). In this way you cannot be accused of being obstructive or uncoperative.
This is important because many parents give services a hard time, yet don't turn up for appointments or training sessions, or demand input yet then do not do carryover activities at ohme, which understandably causes resentment in those who work with large caseloads and are stretched.
Read the SEN Code of Practice. It's pretty vague but good to know about as chunks quoted back can be very useful indeed to let them know your stuff and wil lnot be messed about or fobbed off.
Sorry to sound like a cynical old boot but I learned all this stuff the hard way. I don't want it to be as painful or difficult for other people.