Being placed on suspension is not an automatic assumption of guilt and does not amount to disciplinary action. It is there to be used as a precautionary measure whilst an employer investigates any allegations against the employee. Reasons for suspending could be in the case of gross misconduct, breakdown of relationship, risk to an employer's property, their clients or other employees, to preserve evidence or ensure it is not tampered with, avoid potential witnesses being pressured or intimidated, etc.
During the period of suspension the employer should conduct a reasonable investigation into the allegations against the employee. If the investigation gathers enough evidence to justify the taking disciplinary action that could be the next step. In that case the employee has the right to be informed in advance of the allegations against them and be given the opportunity to prepare for the hearing.
On the other hand, if the investigation does not find enough evidence to justify a disciplinary, the employer should terminate the suspension immediately and allow the employee to return to work as normal.
Why there is a delay is uncertain at this stage – only the employer knows this really so you should seek to contact them to ask about it and to check when you will be allowed to return to work. Do not just wait for them – be proactive because they may not be as organised as you may expect them to be.
If you are not allowed to return to work or it is being unreasonably delayed then your rights will very much depend on your length of service with this company.
This is your basic legal position. I have more detailed advice for you in terms of the rights you have based on your length of service, which I wish to discuss so please take a second to leave a positive rating for the service so far (by selecting 3, 4 or 5 stars) and I can continue with that and answer any further questions you may have. Don’t worry, there is no extra cost and leaving a rating will not close the question and we can continue this discussion. Thank you