If I am to have an extractor fan and spot lights fitted in the bathroom I am right in saying the person doing this needs to be able to issue a Part P certificate?

Part P is not a certificate its a building regulation. The person doing the work have to either be a member of a self certification scheme they can issues the certs, or the person doing the work must make an application to the local building control, they will charge them a fee and then they send out an electrician who is registered with one of the Part P self certification schemes to check there work basically. They will inspect there work and either pass it and issue a certificate or fail it and then charge them to come out and re test after the non compliance has been sorted out. Hope this clarifies.

Yes must be.

Bathroom is a special location,so the answer is yes-installed by a competent person who is a part P (check their registration number) and he must issue a part P certificate and notify Building Control on your behalf.

The certificate issued will be either a Minor Works Certificate or an Electrical Installation Certificate, whichever is applicable. However the job would as said fall under Part P notifiable so would need to be notified to LABC.

Part P is just one of the myriad of building regualtion annexes that need to be complied with when renovating your house, and compliance is achieved by the electrical works being registered with the relevant local authority LABC. The easiest route to complying with part P and avoiding any nasty fines (can be up to £5000), is to get a registered electrical installer to carry out the work and self certify it. He/she can then log the job online on your behalf. - About three weeks later you'll get a certificate from the electrical scheme provider that the elctrician is with showing you that the work has been registered with building control and a local authority reference number etc. - Easy! You can do the work DIY if you have the skills, but you must pre-notify your LABC before you start work and pay their fees (approx £200 - £300) - At lot more difficult and costly! Hope this helps